OSDN Git Service

047033cce57925a25159e6c03942fdf8279f1860
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-08  DJ Delorie  <dj@redhat.com>
2
3         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
4         (addpsi3): Expand to include memory operands.  Remove
5         reload-specific splits.
6         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
7         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
8         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
9         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
10         (shift1_qi, shift1_hi, insv): New.
11         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
12         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
13         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
14         cond_to_int): New.
15         * config/m32c/m32c-protos.h: Update as needed.
16         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
17         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
18         Fail for unrecognized R* constraints.
19         (m32c_cannot_change_mode_class): Be more picky about pseudos.
20         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
21         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
22         Add Sp constraint.
23         (m32c_init_libfuncs): New.
24         (m32c_legitimate_address_p): Add debug wrapper.
25         (m32c_rtx_costs): New.
26         (m32c_address_cost): New.
27         (conversions): Add 'B' prefix.
28         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
29         operands, or word regnames for QI operands.  'B' prints bit
30         position.
31         (m32c_expand_setmemhi): New.
32         (m32c_expand_movmemhi): New.
33         (m32c_expand_movstr): New.
34         (m32c_expand_cmpstr): New.
35         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
36         (m32c_expand_neg_mulpsi3): Handle non-ints.
37         (m32c_cmp_flg_0): New.
38         (m32c_expand_movcc): New.
39         (m32c_expand_insv): New.
40         (m32c_scc_pattern): New.
41         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
42         a0/a1 out of SIregs.
43         (STORE_FLAG_VALUE): New.
44         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
45         code macros.
46         (no_insn): New.
47         * config/m32c/mov.md: Make constraints more liberal.
48         (zero_extendqihi2): Optimize r0/r1 case.
49         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
50         * config/m32c/predicates.md (m32c_any_operand): New.
51         (m32c_nonimmediate_operand): New.
52         (m32c_hl_operand): New.
53         (m32c_r3_operand): New.
54         (ap_operand): New.
55         (ma_operand): New.
56         (memsym_operand): New.
57         (memimmed_operand): New.
58         (a_qi_operand): New.
59         (m32c_eqne_operator): New.
60         (m32c_1bit8_operand): New.
61         (m32c_1bit16_operand): New.
62         (m32c_1mask8_operand): New.
63         (m32c_1mask16_operand): New.
64         * config/m32c/blkmov.md: New file.
65         * config/m32c/t-m32c (MD_FILES): Add blkmov.
66
67 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
68
69         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
70         unsigned to fix signed/unsigned comparison issue in
71         DWARF2_FRAME_REG_OUT.
72         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
73         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
74
75         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
76         of ptr into the ENABLE_CHECKING section.
77
78 2006-03-08  Jeff Law  <law@redhat.com>
79
80         * tree-vrp.c (infer_value_range): Only count pointer uses
81         and dereferences if -fdelete-null-pointer-checks is enabled.
82
83         * tree-vrp.c (find_assert_locations): Infer value ranges for
84         single use pointers, but do not create ASSERT_EXPRs for them.
85         When a non-null range is inferred for a pointer, backwards
86         propagate that range to other equivalent pointers through the
87         use-def chain.
88
89 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
90
91         PR bootstrap/26500
92         * Makefile.in (dvi, html, install-info): Invoke the corresponding
93         language hook targets.
94         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
95         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
96         if language hook targets were missing.
97
98 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
99
100         * tree-ssa-opfinalize.h: Removed.
101         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
102         dependency.
103         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
104         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
105         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
106         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
107         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
108         finalize_ssa_v_must_def_ops): New.
109
110 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
111
112         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
113         block as parameter.
114
115 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
116
117         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
118
119         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
120         addresses with offsets; reorganize.
121
122         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
123         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
124         (expand_builtin_init_dwarf_reg_sizes): Likewise.
125
126 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
127
128         PR target/26588
129         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
130
131 2006-03-08  Ben Elliston  <bje@au.ibm.com>
132
133         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
134
135 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
136
137         PR gomp/26238
138         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
139         expansion.
140
141 2006-03-07  Richard Guenther  <rguenther@suse.de>
142
143         PR tree-optimization/26587
144         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
145
146 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
147
148         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
149
150 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
151
152         * hooks.c (hook_bool_mode_rtx_true): New function.
153         * hooks.h (hook_bool_mode_rtx_true): Declare.
154         * toplev.c (compile_file): Call output_shared_constant_pool.
155         * varasm.c (shared_constant_pool): New variable.
156         (assemble_start_function, assemble_end_function): Remove arguments
157         from call to output_constant_pool.
158         (create_constant_pool): New function, split out from...
159         (init_varasm_status): ...here.
160         (force_const_mem): Choose between the shared and per-function constant
161         pools.  Set current_function_uses_const_pool when reusing old entries
162         as well as when creating new ones.
163         (mark_constant): Ignore data argument.
164         (mark_constants): Remove pool argument.
165         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
166         to decide whether the function uses a constant pool.
167         (output_constant_pool_contents): New function, split out from...
168         (output_constant_pool): ...here.
169         (output_shared_constant_pool): New function.
170         (init_varasm_once): Initialize shared_constant_pool.
171         * output.h (output_constant_pool): Delete.
172         (output_shared_constant_pool): Declare.
173         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
174         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
175
176 2006-03-06  Nick Clifton  <nickc@redhat.com>
177
178         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
179         flag_strength_reduce.
180
181 2006-03-06  Ben Elliston  <bje@au.ibm.com>
182
183         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
184         x86_64-*-linux* configurations.
185
186         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
187         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
188
189 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
190
191         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
192         Remove.
193         * basic-block.h: Remove the extern for
194         rediscover_loops_after_threading.
195
196         * cfgloop.c (cancel_loop): Make it static.
197         * cfgloop.h: Remove the prototype for cancel_loop.
198
199         * flow.c (recompute_reg_usage): Make it static.
200         * rtl.h: Remove the prototype for recompute_reg_usage.
201
202         * function.c (use_return_register): Make it static.
203         * function.h: Remove the prototype.
204
205 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
206
207         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
208         Remove.
209         * recog.h: Remove the prototype for
210         validate_change_maybe_volatile.
211
212 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
213
214         * rtlanal.c (replace_reg): Remove.
215         * rtl.h: Remove the prototype for replace_reg.
216
217 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
218
219         * regclass.c (reg_scan_update): Remove.
220         (reg_scan_mark_refs): Remove the last argument.
221         * rtl.h: Remove the prototype for reg_scan_update.
222
223 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
224
225         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
226         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
227         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
228         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
229         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
230         loop-invariant.c, omp-low.c, opts.c, passes.c,
231         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
232         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
233         tree-ssa-structalias.c, tree-ssa-threadedge.c,
234         tree-ssa-threadupdate.c, tree-vect-patterns.c,
235         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
236         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
237
238 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
239
240         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
241         * dwarf2out.h: Remove the prototype for
242         dwarf2out_add_library_unit_info.
243
244 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
245
246         * tree.c (add_var_to_bind_expr): Remove.
247         * tree.h: Remove the prototype for add_var_to_bind_expr.
248
249 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
250
251         * regclass.c (n_non_fixed_regs): Remove.
252         (init_reg_sets_1, globalize_reg): Remove all uses of
253         n_non_fixed_regs.
254         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
255
256 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
257
258         * rtlanal.c (insns_safe_to_move_p): Remove.
259         * rtl.h: Remove the prototype for insns_safe_to_move_p.
260
261 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
262
263         * expmed.c (expand_mult_add): Remove.
264         * expr.h: Remove the prototype for expand_mult_add.
265
266 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
267
268         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
269         and REG_SAVED_VAL_EXP constants.
270         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
271         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
272         Handle regs stored by value.
273         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
274         (execute_cfa_program): Handle DW_CFA_val_offset,
275         DW_CFA_val_offset_sf and DW_CFA_val_expression.
276         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
277         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
278         (uw_install_context_1): Handle target regs stored by value.
279
280 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
281
282         * tree-sra.c (tree_sra): Return todoflags;
283         (generate_one_element): Set TODO_update_smt_usage if needed.
284         (pass_sra): Remove TODO_update_smt_usage.
285         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
286         parameter.
287         (tree_ssa_forward_propagate_single_use_vars): Return
288         TODO_update_smt_usage if we need to update SMT usage.
289         (pass_forwprop): Remove TODO_update_smt_usage.
290         
291 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
292
293         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
294         (correct_use_link): Remove reference to get_stmt_operands.
295         (update_stmt_operands): Likewise.
296         (get_modify_expr_operands): New function factored out of
297         parse_ssa_operands and get_expr_operands.
298         Try to create V_MUST_DEFs for LHS by default.
299         (get_expr_operands) <case MODIFY_EXPR>: Call
300         get_modify_expr_operands.
301         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
302         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
303         (parse_ssa_operands) <case MODIFY_EXPR>: Call
304         get_modify_expr_operands.
305
306 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
307
308         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
309         * tree-flow.h: Remove the prototype for
310         referenced_var_lookup_if_exists.
311
312 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
313
314         PR rtl-optimization/26345
315         PR target/19061
316         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
317
318 2006-03-03  Roger Sayle  <roger@eyesopen.com>
319
320         PR tree-optimization/26524
321         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
322         fold_convert to create a constant of the appropriate type.
323
324 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
325
326         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
327         SYMBOL_REF_IN_BLOCK_P.
328         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
329         of SYMBOL_FLAG_IN_BLOCK.
330         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
331         instead of SYMBOL_REF_IN_BLOCK_P.
332         * explow.c (use_anchored_address): Likewise.
333         * rtl.c (rtx_size): Likewise.
334         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
335         instead of SYMBOL_FLAG_IN_BLOCK.
336         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
337         SYMBOL_REF_IN_BLOCK_P.
338         (assemble_variable): Likewise.
339         (output_constant_def_contents): Likewise.
340         (output_constant_pool): Likewise.
341         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
342         instead of SYMBOL_FLAG_IN_BLOCK.
343         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
344         SYMBOL_REF_IN_BLOCK_P.
345         (SYMBOL_REF_BLOCK): Likewise.
346         (SYMBOL_REF_OFFSET): Likewise.
347         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
348         SYMBOL_REF_IN_BLOCK_P.
349         (SYMBOL_FLAG_IN_BLOCK): Replace with...
350         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
351         (SYMBOL_REF_IN_BLOCK_P): Replace with...
352         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
353
354 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
355
356         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
357
358 2006-03-02  Roger Sayle  <roger@eyesopen.com>
359
360         * simplify-rtx.c (simplify_unary_operation): When simplifying
361         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
362         that we perform the right shift in the appropriate mode, and
363         then extend or truncate the result to requested mode.
364
365 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
366
367         * gengtype.c (main): Handle double_int type.
368         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
369         * double-int.c: New file.
370         * double-int.h: New file.
371         * system.h: Include doubleint.h.
372         * Makefile.in (SYSTEM_H): Include double-int.h.
373         (double-int.o): Add.
374
375 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
376
377         PR bootstrap/26478
378         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
379         copying over it.
380
381 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
382
383         * tree-vrp.c (remove_range_assertions): Do not update statements
384         unnecessarily.
385
386 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
387
388         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
389         cleanup.
390         * gcse.c (rest_of_handle_gcse): Ditto.
391         * except.c (gate_handle_eh): Ditto.
392         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
393         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
394
395 2006-03-02  Eric Christopher  <echristo@apple.com>
396
397         * config/i386/i386.c (machopic_output_stub): Add indirection to
398         jump.
399
400 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
401
402         * loop.c: Removed.
403
404 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
405
406         Sun Niagara specific optimizations.
407         * config.gcc: Recognize niagara as target.
408         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
409         (TARGET_CPU_niagara): Define.
410         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
411         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
412         (CPP_CPU_SPEC): Handle -mcpu=niagara.
413         (ASM_CPU_SPEC): Likewise.
414         (PROCESSOR_NIAGARA): New enum entry.
415         (REGISTER_MOVE_COST): Handle Niagara.
416         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
417         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
418         (sparc_override_options): Recognize "niagara", set appropriate
419         default MASK_* values for it, and align functions to 32-bytes
420         by default just like ULTRASPARC/ULTRASPARC3.
421         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
422         (sparc64_initialize_trampoline): Likewise.
423         (sparc_use_sched_lookahead): Use zero for niagara.
424         (sparc_issue_rate): Use one for niagara.
425         * config/sparc/niagara.md: New file.
426         * config/sparc/sparc.md: Include it.
427         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
428         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
429         when default cpu is niagara.
430         (CPP_CPU_SPEC): Handle -mcpu=niagara.
431         (ASM_CPU_SPEC): Likewise.
432         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
433         when default cpu is niagara.
434         (ASM_CPU_SPEC): Handle -mcpu=niagara.
435         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
436         just like v9/ultrasparc/ultrasparc3.
437         * doc/invoke.texi: Add documentation for "niagara" and improve
438         existing documentation for ultrasparc variants.
439
440 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
441
442         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
443
444 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
445
446         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
447         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
448         and say that only one is needed.
449         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
450         * target.h (have_switchable_bss_sections): New hook.
451         * explow.c (use_anchored_address): Check that the symbol is in a block.
452         * varasm.c (tls_comm_section, comm_section, lcomm_section)
453         (bss_noswitch_section): New variables.
454         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
455         (get_noswitch_section): New function.
456         (get_block_for_section): Allow SECT to be null.
457         (unlikely_text_section_p): Use SECTION_STYLE.
458         (bss_initializer_p): New function.
459         (get_variable_section): Move earlier in file.  Take a new argument,
460         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
461         Return one of the new *_sections in such cases.
462         (get_block_for_decl): New function, extracting some logic from
463         use_blocks_for_decl_p.
464         (change_symbol_section): Remove in favor of...
465         (change_symbol_block): ...this new function.
466         (use_blocks_for_decl_p): Remove checks now performed by
467         get_block_for_decl.
468         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
469         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
470         (emit_local, emit_bss, emit_common): ...these new functions.
471         Return true if the alignment was honored.
472         (emit_tls_common): New function.
473         (asm_emit_uninitialised): Delete.
474         (assemble_variable_noswitch): New function, split out from...
475         (assemble_variable): ...here.  Don't make decisions about common
476         variables here.  Globalize all public decls that go into non-common
477         sections.  Check whether SYMBOL_REF_BLOCK is null.
478         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
479         (output_constant_pool): Likewise.
480         (init_varasm_once): Initialize the new section variables.
481         (have_global_bss_p): New function.
482         (categorize_decl_for_section): Use bss_initializer_p.
483         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
484         (place_block_symbol): Assert that the symbol must be in a block.
485         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
486         (TARGET_INITIALIZER): Include it.
487         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
488         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
489         (SECTION_MACH_DEP): Bump by two.
490         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
491         (unnamed_section): Mention SECTION_UNNAMED in comment.
492         (named_section): Likewise SECTION_NAMED.
493         (noswitch_section_callback): New type.
494         (noswitch_section): New structure.
495         (section): Add a noswitch_section alternative.
496         (SECTION_STYLE): New macro.
497         (tls_comm_section, comm_section, lcomm_section): Declare.
498         (bss_noswitch_section, have_global_bss_p): Declare.
499         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
500         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
501         Override.
502         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
503         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
504         Override.
505
506 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
507
508         * gcc/tree-vrp.c (execute_vrp): Return value.
509         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
510         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
511         * gcc/tree-complex.c (tree_lower_complex): Ditto.
512         (tree_lower_complex_O0): Ditto.
513         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
514         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
515         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
516         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
517         (execute_tail_calls): Ditto.
518         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
519         * gcc/tree.h (init_function_for_compilation): Ditto.
520         * gcc/ipa-cp.c (ipcp_driver): Ditto.
521         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
522         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
523         * gcc/final.c (compute_alignments): Ditto.
524         (rest_of_handle_final): Ditto.
525         (rest_of_handle_shorten_branches): Ditto.
526         (rest_of_clean_state): Ditto.
527         * gcc/omp-low.c (execute_expand_omp): Ditto.
528         (execute_lower_omp): Ditto.
529         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
530         * gcc/ipa-reference.c (static_execute): Ditto.
531         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
532         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
533         (rest_of_handle_machine_reorg): Ditto.
534         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
535         * gcc/flow.c (recompute_reg_usage): Ditto.
536         (rest_of_handle_remove_death_notes): Ditto.
537         (rest_of_handle_life): Ditto.
538         (rest_of_handle_flow2): Ditto.
539         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
540         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
541         (do_ssa_store_ccp): Ditto.
542         (execute_fold_all_builtins): Ditto.
543         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
544         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
545         * gcc/ipa-pure-const.c (static_execute): Ditto.
546         * gcc/cse.c (rest_of_handle_cse): Ditto.
547         (rest_of_handle_cse2): Ditto.
548         * gcc/web.c (rest_of_handle_web): Ditto.
549         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
550         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
551         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
552         * gcc/tree-nrv.c (tree_nrv): Ditto.
553         (execute_return_slot_opt): Ditto.
554         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
555         (create_structure_vars): Ditto.
556         * gcc/loop-init.c (rtl_loop_init): Ditto.
557         (rtl_loop_done): Ditto.
558         (rtl_move_loop_invariants): Ditto.
559         (rtl_unswitch): Ditto.
560         (rtl_unroll_and_peel_loops): Ditto.
561         (rtl_doloop): Ditto.
562         * gcc/gimple-low.c (lower_function_body): Ditto.
563         (mark_used_blocks): Ditto.
564         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
565         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
566         (cgraph_early_inlining): Ditto.
567         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
568         * gcc/jump.c (cleanup_barriers): Ditto.
569         (purge_line_number_notes): Ditto.
570         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
571         (rest_of_handle_if_after_reload): Ditto.
572         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
573         (tree_ssa_loop_im): Ditto.
574         (tree_ssa_loop_unswitch): Ditto.
575         (tree_vectorize): Ditto.
576         (tree_linear_transform): Ditto.
577         (tree_ssa_loop_ivcanon): Ditto.
578         (tree_ssa_empty_loop): Ditto.
579         (tree_ssa_loop_bounds): Ditto.
580         (tree_complete_unroll): Ditto.
581         (tree_ssa_loop_prefetch): Ditto.
582         (tree_ssa_loop_ivopts): Ditto.
583         (tree_ssa_loop_done): Ditto.
584         * gcc/predict.c (tree_estimate_probability): Ditto.
585         * gcc/recog.c (split_all_insns_noflow): Ditto.
586         (rest_of_handle_peephole2): Ditto.
587         (rest_of_handle_split_all_insns): Ditto.
588         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
589         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
590         (rest_of_handle_stack_adjustments): Ditto.
591         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
592         * gcc/function.c (instantiate_virtual_regs): Ditto.
593         (init_function_for_compilation): Ditto.
594         (rest_of_handle_check_leaf_regs): Ditto.
595         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
596         (rest_of_handle_gcse): Ditto.
597         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
598         * gcc/alias.c (rest_of_handle_cfg): Ditto.
599         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
600         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
601         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
602         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
603         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
604         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
605         * gcc/except.c (set_nothrow_function_flags): Ditto.
606         (convert_to_eh_region_ranges): Ditto.
607         (rest_of_handle_eh): Ditto.
608         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
609         (remove_unnecessary_notes): Ditto.
610         * gcc/except.h (set_nothrow_function_flags): Ditto.
611         (convert_to_eh_region_ranges): Ditto.
612         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
613         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
614         * gcc/tree-ssa-pre.c (do_pre): Ditto.
615         (execute_fre): Ditto.
616         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
617         (rest_of_handle_jump2): Ditto.
618         * gcc/tree-sra.c (tree_sra): Ditto.
619         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
620         (execute_mudflap_function_decls): Ditto.
621         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
622         (do_store_copy_prop): Ditto.
623         * gcc/ipa-prop.h (ipcp_driver): Ditto.
624         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
625         * gcc/tree-ssa-forwprop.c
626         (tree_ssa_forward_propagate_single_use_vars): Ditto.
627         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
628         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
629         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
630         (execute_late_warn_uninitialized): Ditto.
631         * gcc/rtl.h (cleanup_barriers): Ditto.
632         (split_all_insns_noflow): Ditto.
633         (purge_line_number_notes): Ditto.
634         (unshare_all_rtl): Ditto.
635         (remove_unnecessary_notes): Ditto.
636         (recompute_reg_usage): Ditto.
637         (variable_tracking_main): Ditto.
638         * gcc/integrate.c (emit_initial_value_sets): Ditto.
639         * gcc/integrate.h (emit_initial_value_sets): Ditto.
640         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
641         (execute_free_cfg_annotations): Ditto.
642         (execute_fixup_cfg): Ditto.
643         (execute_cleanup_cfg_pre_ipa): Ditto.
644         (execute_cleanup_cfg_post_optimizing): Ditto.
645         (execute_init_datastructures): Ditto.
646         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
647         * gcc/combine.c (rest_of_handle_combine): Ditto.
648         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
649         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
650         (rest_of_handle_reorder_blocks): Ditto.
651         (rest_of_handle_partition_blocks): Ditto.
652         * gcc/var-tracking.c (variable_tracking_main): Ditto.
653         * gcc/tree-profile.c (tree_profiling): Ditto.
654         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
655         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
656         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
657         (rest_of_handle_sched2): Ditto.
658         * gcc/basic-block.h (free_bb_insn): Ditto.
659         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
660         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
661         (remove_useless_stmts): Ditto.
662         (split_critical_edges): Ditto.
663         (execute_warn_function_return): Ditto.
664         (execute_warn_function_noreturn): Ditto.
665         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
666         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
667         * gcc/passes.c (execute_one_pass): Run additional
668         todos returned by execute function.
669         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
670         return a value.
671
672 2006-03-02  Richard Guenther  <rguenther@suse.de>
673
674         * tree-ssa-alias.c (find_used_portions): Consider taking
675         the address as making the variable not write-only.
676
677 2006-03-02  Nick Clifton  <nickc@redhat.com>
678
679         * config.gcc (default_use_cxa_atexit): Extend the description of
680         this configure variable.  Set its default value to "yes" for
681         Linux, NetBSD and ELF targets on the assumption that they will
682         use C libraries with the __cxa_atexit function.
683
684 2006-03-02  Ben Elliston  <bje@au.ibm.com>
685
686         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
687         parameter as unused to suppress a build warning.
688
689 2006-03-02  Ben Elliston  <bje@au.ibm.com>
690
691         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
692         config/dfp-bit.c.
693
694 2006-03-01  Roger Sayle  <roger@eyesopen.com>
695
696         PR other/26489
697         * gthr-posix.h (__gthrw2): Define to take three parameters, the
698         declared name, the weak reference name, and the typeof name.
699         (__gthrw): Avoid expanding the declared name suffix.
700         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
701
702 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
703
704         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
705         from DWARF 3.
706         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
707         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
708         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
709         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
710         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
711         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
712         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
713         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
714         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
715         DW_DS_leading_separate, DW_DS_trailing_separate): New.
716         (DW_END_default, DW_END_big, DW_END_little): New.
717         (DW_END_lo_user, DW_END_hi_user): Define.
718         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
719         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
720         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
721         DW_LANG_D): New.
722
723 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
724
725         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
726         Update all users.
727         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
728         Update all users.
729         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
730         Update all users.
731         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
732         Update all users.
733         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
734         to 'symbol_mem_tag'.
735         Update all users.
736         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
737         rename.
738
739 2006-03-01  Roger Sayle  <roger@eyesopen.com>
740
741         * builtins.c (fold_builtin_copysign): Delete unreachable code.
742
743 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
744
745         PR target/25761
746         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
747         MACHO_DYNAMIC_NO_PIC_P.
748         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
749
750 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
751
752         PR target/26389
753         * config/darwin-protos.h (darwin_asm_output_anchor):
754         Declare.
755         * config/darwin-sections.def (cstring_section):
756         Add SECTION_MERGE to the flags.
757         (literal4_section): Likewise.
758         (literal8_section): Likewise.
759         (objc_selector_refs_section): Likewise.
760         (objc_cls_refs_section): Likewise.
761         * config/darwin.c (darwin_asm_output_anchor): New
762         function.
763         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
764
765 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
766
767         Fix PR tree-optimization/26443
768         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
769         to todo and PROP_tmt_usage to properties_destroyed.
770         * tree-ssa-ccp.c (pass_ccp): Ditto.
771         (pass_store_ccp): Ditto.
772         * tree-ssa-dom.c (pass_dominator): Ditto.
773
774 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
775
776         * tree-ssa-operands.c: Cleanup whitespace.
777         (get_asm_expr_operands): Move before first invocation.
778         (get_indirect_ref_operands): Likewise.
779         (get_tmr_operands): Likewise.
780         (get_call_expr_operands): Likewise.
781         (append_def): Likewise.
782         (append_use): Likewise.
783         (append_v_may_def): Likewise.
784         (append_v_must_def): Likewise.
785         (add_call_clobber_ops): Likewise.
786         (add_call_read_ops): Likewise.
787         (add_stmt_operand): Likewise.
788         (add_virtual_operand): Likewise.
789         (build_ssa_operands): Likewise.
790
791 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
792
793         PR middle-end/26022
794         Revert:
795         PR middle-end/24437
796         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
797         with a call expr to ...
798         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
799
800 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
801
802         * tree-vrp.c (extract_range_from_assert): Remove special
803         handling for types with super-types.
804
805 2006-03-01  Ben Elliston  <bje@au.ibm.com>
806
807         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
808         and powerpc64-*-linux* configurations.
809         * config/t-dfprules: New file.
810
811         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
812         Compile dfp-bit.c from the source directory using -DWIDTH and
813         $DFP_CFLAGS to control the compilation of that file, rather than
814         generating width-specific versions in the build directory.
815         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
816         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
817
818 2006-02-28  Zack Weinberg  <zackw@panix.com>
819
820         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
821         continues to work.
822
823 2006-02-28  Eric Christopher  <echristo@apple.com>
824
825         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
826         Set up IN_LIBGCC definition of TARGET_64BIT.
827         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
828
829 2006-02-28  Roger Sayle  <roger@eyesopen.com>
830
831         PR middle-end/14752
832         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
833         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
834         cases via the construction of "expr != 0".
835
836 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
837
838         * alias.c (alias_invariant, alias_invariant_size): Remove.
839         (record_base_value): Remove.
840         (memrefs_conflict_p): Don't look at alias_invariant.
841         (end_alias_analysis): Don't free it.
842         * alias.h (record_base_value): Remove prototype.
843
844 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
845             Adam Nemet  <anemet@caviumnetworks.com>
846
847         * rtl.h (truncated_to_mode): Declare it.
848         (struct rtl_hooks): Add reg_truncated_to_mode hook.
849         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
850         (RTL_HOOKS_INITIALIZER): Include it.
851         * rtlhooks.c (reg_truncated_to_mode_general): New function.
852         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
853         reg_truncated_to_mode.
854         * rtlanal.c (truncated_to_mode): Define it.
855         * simplify-rtx.c (simplify_unary_operation_1): Use it.
856
857 2006-02-28  Jeff Law  <law@redhat.com>
858
859         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
860         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
861         the range allowed by TYPE_PRECISION.
862
863         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
864
865 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
866
867         PR tree-optimization/26419
868         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
869         values of n.
870
871 2006-02-27  Zack Weinberg  <zackw@panix.com>
872
873         * doc/md.texi: Fix typo in previous change.
874
875 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
876
877         * df.c: Remove.
878
879 2006-02-27  Zack Weinberg  <zackw@panix.com>
880
881         * rtl.def (define_constraint, define_register_constraint)
882         (define_memory_constraint, define_address_constraint): New MD forms.
883         * gensupport.c (process_rtx): Put define_constraint etc on the
884         predicate queue.
885         * genpreds.c (process_define_predicate): Adjust comment.  Validate
886         the name, and call validate_exp to validate the expression.
887         (mark_mode_tests, write_extract_subexp): Can assume correct input.
888         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
889         all callers changed.
890         (validate_exp, needs_variable, struct constraint_data)
891         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
892         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
893         (const_dbl_constraints, constraint_max_namelen)
894         (have_register_constraints, have_memory_constraints)
895         (have_address_constraints, have_address_constraints)
896         (have_extra_constraints, have_const_int_constraints)
897         (have_const_dbl_constraints, mangle, add_constraint)
898         (process_define_constraint, process_define_register_constraint)
899         (write_enum_constraint_num, write_lookup_constraint)
900         (write_insn_constraint_len, write_regclass_for_constraint)
901         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
902         (write_insn_extra_memory_constraint)
903         (write_insn_extra_address_constraint)
904         (write_satisfies_constraint_fns): New.
905         (write_tm_preds_h): If we have new-style constraint definitions,
906         prototype the functions generated from them, and define the
907         old constraint interface (still used by generic code) in terms of
908         those functions.
909         (write_insn_preds_c): If we have new-style constraint definitions,
910         generate all relevant functions from those definitions.
911         (main): Handle define_constraint etc.
912         * genoutput.c (struct constraint_data, indep_constraints)
913         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
914         (mdep_constraint_len): New data structures and functions, defined
915         #ifdef USE_MD_CONSTRAINTS.
916         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
917         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
918         use new logic to validate operand constraints against constraint
919         definitions.
920         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
921         defined.
922         * defaults.h: If none of the old-style constraint macros are
923         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
924         old-style macros; and poison REG_CLASS_FROM_LETTER,
925         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
926         EXTRA_CONSTRAINT.
927         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
928         * doc/md.texi: Document new constraint-definition mechanism and the
929         C interface it provides.  Remove references to old mechanism
930         elsewhere in the document.
931         (Machine Constraints): Use pathnames relative to gcc directory,
932         i.e. config/ARCH/FILE.  Change i386 section to refer to
933         config/i386/predicates.md; update that section to match docstrings.
934         * doc/tm.texi: Move all documentation of the old constraint-
935         definition macros to their own section, clearly mark as obsolete.
936
937         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
938         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
939         definitions.
940         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
941         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
942         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
943         constraint strings.
944         (splits and peepholes): Use satisfies_constraint_*.
945         * config/i386/i386.c (memory_address_length)
946         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
947
948 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
949
950         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
951         scalar operation to be put back into the loop.
952
953 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
954
955         PR other/26208
956         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
957         (extract_cie_info): Handle S flag in augmentation string.
958         (execute_cfa_program): If context->signal_frame, execute also
959         fs->pc == context->ra instructions.
960         (uw_frame_state_for): If context->signal_frame, don't subtract one
961         from context->ra to find FDE.
962         (uw_update_context_1): Set context->signal_frame to
963         fs->signal_frame.
964         (_Unwind_GetIPInfo): New function.
965         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
966         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
967         of _Unwind_GetIP.
968         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
969         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
970         * unwind-compat.c (_Unwind_GetIPInfo): New function.
971         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
972         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
973         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
974         * config/i386/linux-unwind.h (x86_fallback_frame_state,
975         x86_64_fallback_frame_state): Set fs->signal_frame.
976         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
977         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
978         (frob_update_context): Likewise.  Workaround missing S flag in
979         Linux 2.6.12 - 2.6.16 kernel vDSOs.
980         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
981         Remove the psw_addr + 1 hack.
982
983 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
984
985         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
986         with aggregates here.
987         (find_func_aliases): Remove code for &<aggregate> from here.
988
989 2006-02-26  Roger Sayle  <roger@eyesopen.com>
990
991         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
992         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
993         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
994         as (X & C) ne/eq 0.
995
996 2006-02-26  Roger Sayle  <roger@eyesopen.com>
997
998         PR middle-end/19983
999         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
1000
1001 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
1002
1003         * opts.c (decode_options): Do not handle flag_strength_reduce.
1004         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
1005         and OPT_fstrength_reduce.
1006         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
1007         flag_prefetch_loop_arrays for being nonzero.
1008         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
1009         no-ops.
1010         (fprefetch-loop-arrays-rtl): Removed.
1011         (flag_prefetch_loop_arrays): Do not specify the value.
1012
1013         * doc/passes.texi: Update documentation of loop optimizer
1014         passes.
1015         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
1016         -frerun-loop-opt): Remove.
1017
1018 2006-02-26  Richard Guenther  <rguenther@suse.de>
1019
1020         PR tree-optimization/26421
1021         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
1022         in function calls that are ADDR_EXPRs as using the whole structure.
1023
1024 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
1025
1026         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
1027         * tree-pass.h (pass_loop_optimize): Remove.
1028         * passes.c (pass_loop_optimize): Never run it.
1029         * toplev.c (backend_init): Don't call init_loop.
1030         * opts.c (flag_loop_optimize_set): Remove.
1031         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
1032         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
1033         the old RTL loop optimizer when profiling enabled.
1034         * predict.c (tree_estimate_probability): Always strip builtin_expect.
1035         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
1036         pre-headers for the sake of the old RTL loop optimizer.
1037         * Makefile.in: Remove all references to loop.o.
1038
1039         * doc/invoke.texi: Remove all references to -floop-optimize
1040         and -frerun-loop-opt.
1041
1042 2006-02-26  Zack Weinberg  <zackw@panix.com>
1043
1044         * doc/md.texi (Machine Constraints): Refer to all files with paths
1045         relative to gcc directory (i.e. config/CPU/file).  Add missing
1046         @table @code ... @end table to M32C subsection.
1047
1048 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1049
1050         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
1051         (X & 1) == 0.
1052         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
1053
1054 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1055             James A. Morrison  <phython@gcc.gnu.org>
1056
1057         PR middle-end/21137
1058         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
1059         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
1060         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
1061         signedness of the shift operation.
1062
1063 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
1064
1065         PR tree-optimization/26359
1066         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
1067
1068 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1069
1070         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
1071         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
1072         as X == 0, and some symmetry related transformations.
1073         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
1074
1075 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1076
1077         PR middle-end/23673
1078         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
1079         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
1080         symmetry related transformations.  Fold (X^C1) == C2 as
1081         X == (C1^C2).
1082
1083 2006-02-25  Juergen Weigert  <jw@suse.de>
1084         Richard Guenther  <rguenther@suse.de>
1085
1086         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
1087
1088 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
1089
1090         * combine.c (gen_lowpart_or_truncate): Call
1091         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
1092
1093 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
1094
1095         * doc/invoke.texi: Move -fopenmp description to "Options for
1096         Code Generation".
1097         Remove reference to -lgomp.
1098
1099 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1100
1101         * doc/install.texi: Require GNU tar version 1.14.
1102
1103 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
1104
1105         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
1106         * doc/invoke.texi (C++ Dialect Options): Document
1107         -fno-use-cxa-get-exception-ptr.
1108         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
1109         * configure: Regenerate.
1110         * c.opt (fuse-cxa-get-exception-ptr): New.
1111         * c-opts.c (c_common_handle_option): Handle
1112         OPT_fuse_cxa_get_exception_ptr.
1113         * c-common.c (flag_use_cxa_atexit): Update documentation.
1114         (flag_use_cxa_get_exception_ptr): New.
1115         * c-common.h (flag_use_cxa_get_exception_ptr): New.
1116         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
1117         documentation.
1118         (C_COMMON_OVERRIDE_OPTIONS): New.
1119
1120 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1121
1122         PR middle-end/24952
1123         * combine.c (try_combine): Explicitly check whether GET_CODE is
1124         a SET or a CLOBBER, instead on checking that it isn't a USE.
1125
1126 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1127
1128         * fold-const.c (fold_comparison): New subroutine of fold_binary
1129         containing transformations common to both the equality and
1130         ordering relational operators, factored out of fold_binary.
1131         (fold_binary): Separate out the equality operators (EQ_EXPR
1132         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
1133         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1134         transformations common to both.
1135         (fold_div_compare): Fix latent bugs in the previously unreachable
1136         LT_EXPR and GE_EXPR cases.
1137
1138 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1139
1140         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1141         decl libname for clog to __clog on AIX.
1142
1143         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1144
1145 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1146
1147         PR target/26453
1148         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1149         output traceback table for thunks.  Localise rs6000_stack_info call.
1150
1151 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1152             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1153
1154         * gthr-posix.h (__gthrw): Fix typo in comment.
1155
1156 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1157
1158         * doc/cpp.texi (Character sets): Document that we do support
1159         input files to be in any character set.
1160
1161 2006-02-23  Jeff Law  <law@redhat.com>
1162
1163         * tree.h (PHI_ARG_NONZERO): Remove.
1164         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1165         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1166         node to the new node.
1167
1168         PR tree-optimization/26425
1169         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1170         min/max, then assume its varying.
1171
1172 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1173
1174         PR rtl-optimization/26316
1175         * rtlanal.c (enum may_trap_p_flags): New.
1176         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1177         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1178         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1179         (may_trap_after_code_motion_p): New function.
1180         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1181         (find_invariant_insn): Use may_trap_after_code_motion_p.
1182         * rtl.h (may_trap_after_code_motion_p): Declare.
1183
1184 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1185
1186         * emit-rtl.c (immed_double_const): Cleanup.
1187
1188 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1189
1190         Fix PR tree-optimization/26376
1191         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1192         remove assert.
1193
1194 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1195
1196         PR middle-end/26412
1197         * gimplify.c (omp_add_variable): Guard variable size decl test with
1198         DECL_SIZE (decl) check.
1199
1200 2006-02-23  Richard Guenther  <rguenther@suse.de>
1201
1202         PR middle-end/26439
1203         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1204         like aggregate types.
1205
1206 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1207
1208         * configure.ac: Add --with{,out}-long-double-128 configure option.
1209         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1210         * configure: Rebuilt.
1211         * config.in: Rebuilt.
1212         * doc/install.texi (Options specification): Document
1213         --with-long-double-128.
1214
1215         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1216         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1217         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1218         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1219
1220 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1221
1222         * config/s390/s390.c (override_options): Handle
1223         TARGET_DEFAULT_LONG_DOUBLE_128.
1224
1225         * config/alpha/alpha.c (override_options): Handle
1226         TARGET_DEFAULT_LONG_DOUBLE_128.
1227
1228         * config/sparc/sparc.c (sparc_override_options): Handle
1229         TARGET_DEFAULT_LONG_DOUBLE_128.
1230
1231 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1232
1233         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1234         (real-install-headers-tar, real-install-headers-cpio)
1235         (real-install-headers-cp): New targets.
1236
1237 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1238
1239         * tree.h (variable_section): Delete.
1240         * varasm.c (variable_section): Delete.
1241
1242 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1243
1244         * install.texi: Add notes on install.texi2html.
1245         (Building in parallel): Do not use footnotes.
1246
1247 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1248
1249         PR libgomp/26234
1250         * doc/install.texi (Configuration): Document --disable-libgomp.
1251
1252 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1253
1254         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1255
1256 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1257
1258         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1259         (vec_extractv2df_0_sse): New.
1260
1261 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1262
1263         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1264         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1265         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1266         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1267         to the result of the expression.
1268         (def_cfa_1): Adjust.
1269         (frame_pointer_cfa_offset): Rename to...
1270         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1271         (convert_cfa_to_loc_list): Rename to...
1272         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1273         Pass it on to build_cfa_loc.
1274         (compute_frame_pointer_to_cfa_displacement): Rename to...
1275         (compute_frame_pointer_to_fb_displacement): ... this.  New
1276         offset parameter.  Use it in computation.
1277         (gen_subprogram_die): Compute cfa_fb_offset with the new
1278         macro, and use it to compute the fb loc list and the
1279         displacement.
1280
1281 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1282
1283         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1284         replaced with register_operand.
1285         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1286         non-DREG is expensive.
1287         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1288         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1289         involving memory.
1290
1291 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1292
1293         * doc/install.texi2html: Use set -e.
1294
1295 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1296
1297         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1298         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1299         * doc/invoke.texi (-fshared-data): Delete.
1300         * common.opt (fshared-data): Delete.
1301         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1302         (assemble_static_space): Remove #if 0 code.
1303         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1304         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1305         * config/cris/cris.h: Remove FIXME.
1306
1307 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1308
1309         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1310         hooks.
1311
1312 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1313
1314         PR middle-end/26379
1315         * combine.c (simplify_shift_const_1): Disable nested shifts
1316         optimization for vector shifts.
1317
1318 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1319
1320         PR tree-optimization/26361
1321         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1322         of unsigned integer types.
1323
1324 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1325
1326         * tree-chrec.c (eq_evolutions_p): New.
1327         * tree-chrec.h (eq_evolutions_p): Declared.
1328         * tree-data-ref.c: Fix formatting.
1329         (datadep_stats, dependence_stats): New.
1330         (gcd): Moved...
1331         (print_direction_vector): New.
1332         (dump_data_dependence_relation): Use print_direction_vector.
1333         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1334         (compute_subscript_distance): Static.
1335         (initialize_data_dependence_relation): Static.  Get the number
1336         of loops surrounding the references from the callers, and initialize
1337         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1338         base_object_differ_p analyzers.
1339         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1340         compute_overlap_steps_for_affine_1_2,
1341         analyze_subscript_affine_affine): Count the classified dependences.
1342         Print a message when a test failed.
1343         (can_use_analyze_subscript_affine_affine): New.
1344         (analyze_siv_subscript): Compute the data dependences on symbolic
1345         scevs that verify can_use_analyze_subscript_affine_affine.
1346         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1347         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1348         Handle symbolic scevs.
1349         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1350         analyzed.
1351         (subscript_dependence_tester): Moved...
1352         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1353         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1354         DDR_SIZE_VECT instead of getting it in parameter.
1355         (subscript_dependence_tester): ... here.  Take as a parameter
1356         loop_nest_depth.  Call build_classic_dist_vector and
1357         build_classic_dir_vector.
1358         (compute_affine_dependence): Update subscript_dependence_tester
1359         parameters.  Update datadep_stats counters.  Call
1360         compute_subscript_distance.
1361         (compute_self_dependence): Save the dist and dir vectors.  Call
1362         compute_subscript_distance.
1363         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1364         (compute_all_dependences): Reorder parameters as they were before
1365         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1366         compute_subscript_distance.  Update the use of
1367         compute_affine_dependence and initialize_data_dependence_relation.
1368         (find_data_references_in_loop): Handle COMPONENT_REF.
1369         (compute_data_dependences_for_loop): Initialize dependence_stats.
1370         Don't call build_classic_dist_vector and build_classic_dir_vector.
1371         Update the parameters of initialize_data_dependence_relation and
1372         compute_all_dependences.  Print the statistics from datadep_stats.
1373         (analyze_all_data_dependences): Static.  Not used until the pass for
1374         checking the data dependences is contributed.
1375         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1376         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1377         (initialize_data_dependence_relation, compute_affine_dependence,
1378         analyze_all_data_dependences, compute_subscript_distance): Removed.
1379         (print_direction_vector): New.
1380         * lambda.h (gcd): ... here.
1381         (lambda_vector_gcd): Moved here from gcd_vector.
1382         * lambda-code.c (gcd, gcd_vector): Removed.
1383         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1384         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1385
1386 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1387
1388         * ipa-type-escape.c: Tidy some comments and white space.
1389         * tree-ssa-operands.c: Likewise.
1390
1391 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1392
1393         PR tree-opt/25879
1394         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1395         (dump_decl_name): Do not walk the decl tree chains.
1396         * tree-pass.h (TDF_CHAIN): Remove.
1397
1398 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1399
1400         * Makefile.in (C): Remove
1401         (PROTO): Remove
1402         (.PHONY): Remove C and PROTO
1403
1404 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1405
1406         PR middle-end/26236
1407         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1408         deprecated CHAR_TYPE tree code.
1409
1410 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1411
1412         * configure.ac (target_list): Add install-info, dvi, html.
1413         * configure: Regenerate.
1414
1415         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1416         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1417         treelang/Make-lang.in: Do not use double-colon rules.
1418
1419 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1420
1421         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1422         (TMT_USED_ALONE): New macro.
1423         * tree-pass.h (PROP_tmt_usage): New property.
1424         (TODO_update_tmt_usage): New todo.
1425         * tree-ssa-alias.c (updating_used_alone): New variable.
1426         (recalculate_used_alone): New function.
1427         (compute_may_aliases): Set updating_used_alone, call
1428         recalculate_used_alone.
1429         * tree-sra.c (pass_sra): Note that this pass destroys
1430         PROP_tmt_usage, and add TODO_update_tmt_usage.
1431         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1432         * tree-flow.h (updating_used_alone): Prototype.
1433         (recalculate_used_alone): Ditto.
1434         * passes.c (execute_todo): Add code to set updating_used_alone,
1435         and call recalculate.
1436         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1437         for clobber if used alone, and add assert to verify used_alone
1438         status.
1439
1440 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1441
1442         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1443         for non tls symbols added.
1444         (legitimize_address): Do nothing for PLUS expressions if one of the
1445         addends is a tls symbol reference.
1446
1447 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1448
1449         PR bootstrap/25476
1450
1451         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1452
1453         * Makefile.in (BOOTSTRAPPING): New.
1454         (quickstrap): New definition if BOOTSTRAPPING=yes.
1455
1456         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1457         * configure.ac: Substitute all_selected_languages with the languages
1458         that were configured.  For all the other variables except
1459         lang_specs_files, include all the languages in the tree.
1460         * configure: Regenerate.
1461
1462         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1463         if there is one.  Run the commands to run fixincludes in the same
1464         subshell.
1465
1466         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1467         * doc/install.texi: Document exact conventions for searching target tools.
1468         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1469         something more about building an Ada cross-compiler.  Don't list GNU Make
1470         requirements which affect all platforms.
1471
1472 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1473
1474         PR middle-end/19543
1475         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1476         only equivalent if the have both the same mode and precision.
1477
1478 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1479
1480         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1481
1482 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1483             Steven Bosscher  <stevenb.gcc@gmail.com>
1484
1485         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1486         constant pool references to identify stack mode constants.
1487         * rtlanal.c (constant_pool_constant_p): New predicate to check
1488         whether operand is a floating point constant in the pool.
1489         * rtl.h (constant_pool_constant_p): Prototype here.
1490         * loop.c (scan_loop): Avoid hoisting constants from the constant
1491         pool on STACK_REGS targets.
1492         (load_mems): Likewise.
1493         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1494         loads into x87 registers expensive in terms of register pressure.
1495
1496 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1497
1498         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1499         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1500
1501 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1502
1503         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1504         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1505
1506 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1507
1508         * doc/invoke.texi: Document -fipa-pta.
1509         * common.opt: Add ipa-pta option.
1510         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1511         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1512         (do_ds_constraint): Ditto.
1513         (get_constraint_for): Only add to referenced_vars if
1514         referenced_vars exists.
1515         (insert_into_field_list): Rewrite to do this unsorted.
1516         (insert_into_field_list_sorted): Rename old insert_into_field_list
1517         to this.
1518         (create_function_info_for): Use insert_into_field_list_sorted.
1519         (create_variable_info_for): Rewrite so it uses unsorted version,
1520         since the field list is sorted.
1521         (intra_create_variable_infos): Only add to referenced_vars if
1522         referenced_vars exists.
1523         (ipa_pta_execute): Init heapvars, and delete when done.
1524         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1525
1526 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1527
1528         * doc/install.texi: Add missing `@samp'.
1529
1530 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1531
1532         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1533         Use the arguments.
1534
1535 2006-02-18  Mark Wielaard  <mark@klomp.org>
1536
1537         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1538         who added new 4.1 features, bug fixes and integration support.
1539
1540 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1541
1542         PR target/26350
1543         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1544         MEM for ABI_V4 pic.
1545
1546 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1547
1548         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1549         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1550         (copy_insn_1): Likewise.  Don't copy each field individually.
1551         Reindent.
1552         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1553         of RTX_SIZE.
1554         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1555         * rtl.c (rtx_size): Rename variable to...
1556         (rtx_code_size): ...this.
1557         (rtx_size): New function.
1558         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1559         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1560         Reindent.
1561         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1562         * rtl.h (rtx_code_size): New variable.
1563         (rtx_size): Change from a variable to a function.
1564         (RTX_SIZE): Rename to...
1565         (RTX_CODE_SIZE): ...this.
1566
1567         PR target/9703
1568         PR tree-optimization/17106
1569         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1570         (Anchored Addresses): New section.
1571         * doc/invoke.texi (-fsection-anchors): Document.
1572         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1573         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1574         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1575         * hooks.c (hook_bool_mode_rtx_false): New function.
1576         * hooks.h (hook_bool_mode_rtx_false): Declare.
1577         * gengtype.c (create_optional_field): New function.
1578         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1579         SYMBOL_REF_IN_BLOCK_P is true.
1580         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1581         (min_anchor_offset, max_anchor_offset): Likewise.
1582         (use_anchors_for_symbol_p): New hook.
1583         * toplev.c (compile_file): Call output_object_blocks.
1584         (target_supports_section_anchors_p): New function.
1585         (process_options): Check that -fsection-anchors is only used on
1586         targets that support it and when -funit-at-a-time is in effect.
1587         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1588         if the decl doesn't have one.
1589         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1590         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1591         of force_const_mem through use_anchored_address.
1592         (expand_expr_constant): New function.
1593         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1594         calling expand_expr for INDIRECT_REF.
1595         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1596         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1597         * expr.h (use_anchored_address): Declare.
1598         * loop-unroll.c: Don't declare rtx vectors here.
1599         * explow.c: Include output.h.
1600         (validize_mem): Call use_anchored_address.
1601         (use_anchored_address): New function.
1602         * common.opt (-fsection-anchors): New switch.
1603         * varasm.c (object_block_htab, anchor_labelno): New variables.
1604         (hash_section, object_block_entry_eq, object_block_entry_hash)
1605         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1606         (use_blocks_for_decl_p, change_symbol_section): New functions.
1607         (get_variable_section): New function, split out from assemble_variable.
1608         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1609         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1610         symbol has already been created.
1611         (assemble_variable_contents): New function, split out from...
1612         (assemble_variable): ...here.  Don't output any code for
1613         block symbols; just pass them to place_block_symbol.
1614         Use get_variable_section and assemble_variable_contents.
1615         (get_constant_alignment, get_constant_section, get_constant_size): New
1616         functions, split from output_constant_def_contents.
1617         (build_constant_desc): Create a block symbol if use_object_blocks_p
1618         says so.  Or into SYMBOL_REF_FLAGS.
1619         (assemble_constant_contents): New function, split from...
1620         (output_constant_def_contents): ...here.  Don't output any code
1621         for block symbols; just pass them to place_section_symbol.
1622         Use get_constant_section and get_constant_alignment.
1623         (force_const_mem): Create a block symbol if use_object_blocks_p and
1624         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1625         (output_constant_pool_1): Add an explicit alignment argument.
1626         Don't switch sections here.
1627         (output_constant_pool): Adjust call to output_constant_pool_1.
1628         Switch sections here instead.  Don't output anything for block symbols;
1629         just pass them to place_block_symbol.
1630         (init_varasm_once): Initialize object_block_htab.
1631         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1632         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1633         (place_block_symbol, get_section_anchor, output_object_block)
1634         (output_object_block_htab, output_object_blocks): New functions.
1635         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1636         (TARGET_ASM_OUT): Include it.
1637         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1638         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1639         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1640         (TARGET_INITIALIZER): Include them.
1641         * rtl.c (rtl_check_failed_block_symbol): New function.
1642         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1643         (block_symbol, object_block): New structures.
1644         (rtx_def): Add a block_symbol field to the union.
1645         (BLOCK_SYMBOL_CHECK): New macro.
1646         (rtl_check_failed_block_symbol): Declare.
1647         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1648         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1649         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1650         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1651         * output.h (output_section_symbols): Declare.
1652         (object_block): Name structure.
1653         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1654         (default_use_anchors_for_symbol_p): Declare.
1655         * Makefile.in (RTL_BASE_H): Add vec.h.
1656         (explow.o): Depend on output.h.
1657         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1658         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1659         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1660         (rs6000_use_blocks_for_constant_p): New function.
1661
1662 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1663
1664         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1665
1666 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1667
1668         PR tree-opt/25680
1669         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1670         IMAGPART_EXPR.
1671
1672 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1673
1674         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1675         is_aliased.
1676         Update all users.
1677
1678 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1679
1680         PR middle-end/26334
1681         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1682         instead of DECL_REGISTER.
1683
1684 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1685
1686         PR ada/13408
1687         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1688
1689 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1690
1691         PR target/24837
1692         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1693         * opth-gen.awk: Handle Var and InverseMask together.
1694         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1695         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1696         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1697         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1698         used together.
1699         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1700         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1701         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1702         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1703         LINUX_DYNAMIC_LINKER): Define.
1704         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1705         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1706         TARGET_GLIBC.
1707         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1708         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1709         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1710         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1711         (TARGET_C99_FUNCTIONS): Don't define.
1712         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1713         GLIBC_DYNAMIC_LINKER.
1714         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1715         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1716         GLIBC_DYNAMIC_LINKER64): Define.
1717         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1718         LINUX_DYNAMIC_LINKER64.
1719         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1720         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1721         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1722         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1723         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1724         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1725         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1726         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1727         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1728         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1729         and LINUX_DYNAMIC_LINKER32.
1730         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1731         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1732         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1733         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1734         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1735         TARGET_GLIBC.
1736         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1737         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1738         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1739         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1740         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1741         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1742         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1743         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1744         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1745         LINUX_DYNAMIC_LINKER): Define.
1746         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1747         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1748         GLIBC_DYNAMIC_LINKER64): Define.
1749         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1750         LINUX_DYNAMIC_LINKER64.
1751         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1752         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1753         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1754         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1755         LINUX_DYNAMIC_LINKER): Define.
1756         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1757         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1758         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1759         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1760         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1761         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1762         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1763         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1764         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1765         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1766         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1767         * doc/invoke.texi (-muclibc): Remove caveat about supported
1768         targets.
1769
1770 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1771
1772         * doc/cpp.texi (__TIMESTAMP__): Document.
1773
1774 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1775
1776         PR middle-end/25600
1777         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1778         C is one less than the width of X (and related transformations).
1779         * simplify-rtx.c (simplify_unary_operation_1): Transform
1780         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1781         depending on STORE_FLAG_VALUE, were C is one less then the
1782         width of X.
1783
1784 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1785
1786         Fix PR tree-optimization/26341
1787         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1788         about NAME_MEMORY_TAG's.
1789
1790 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1791
1792         PR target/26255
1793         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1794         with hardware float support, and software float support.  Add fcpy
1795         alternative to hardware patterns.  Add alternatives to copy between
1796         general and floating-point registers to the 32-bit pattern.
1797         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1798         secondary reload to load a QI or HI mode constant into a floating
1799         point register.
1800         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1801         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1802
1803 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1804
1805         PR target/26272
1806         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1807         pc to the pattern.
1808         (load_macho_picbase_di): Likewise.
1809
1810 2006-02-16  Jeff Law  <law@redhat.com>
1811
1812         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1813         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1814         (ssa_name_nonzero_p): Likewise.
1815         (get_value_range): Return NULL if VRP is not running.
1816         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1817         VRP routines do not discover a range.
1818         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1819         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1820         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1821         (tree_expr_nonnegative_p): Similarly.
1822         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1823         (restore_nonzero_vars_to_original_value): Remove.
1824         (unsafe_associative_fp_binop): Remove.
1825         (tree_ssa_dominator_optimize): Remove initialization and
1826         finalization of nonzero_vars and nonzero_vars_stack.
1827         (dom_opt_initialize_block): No longer push marker on
1828         nonzero_vars_stack.
1829         (dom_opt_finalize_block): No longer call
1830         restore_nonzero_vars_to_original_value.
1831         (record_equivalences_from_phis): No longer look for
1832         nonzero PHI arguments.
1833         (cprop_into_successor_phis): No longer propagate nonzero
1834         property into PHI arguments.  Lose unused argument.  Caller
1835         updated.
1836         (record_equivalences_from_stmt): No longer record nonzero
1837         values for SSA_NAMEs.
1838         (lookup_avail_expr): No longer use nonzero_vars.
1839
1840         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1841         for sizetype when sizetype is unsigned.
1842
1843 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1844
1845         PR rtl-optimization/25603
1846         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1847         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1848         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1849         with new meaning of SETS.
1850
1851 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1852
1853         PR target/20353
1854         PR target/24578
1855         PR target/24837
1856         * config/linux.opt: New file.
1857         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1858         LINUX_DYNAMIC_LINKER): Define.
1859         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1860         * config.gcc (*-*-linux*): Define extra_options.
1861         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1862         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1863         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1864         GLIBC_DYNAMIC_LINKER.
1865         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1866         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1867         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1868         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1869         * doc/invoke.texi (GNU/Linux Options): New section.
1870
1871 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1872
1873         * config/sparc/sparc.md (setjmp): Rewrite.
1874         (setjmp_32): Delete.
1875         (setjmp_64): Likewise.
1876
1877 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1878
1879         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1880          previous change.
1881
1882 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1883
1884         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1885         read-write uses.
1886
1887 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1888
1889         PR rtl-optimization/26296
1890         * Makefile.in (loop-invariant.c): Add except.h dependency.
1891         * loop-invariant.c: Include except.h.
1892         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1893
1894 2005-02-16  Paul Brook  <paul@codesourcery.com>
1895
1896         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1897         for reloads.
1898
1899 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1900
1901         PR rtl-optimization/25636
1902         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1903         when deciding whether an insn is an initializing insn.
1904
1905 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1906
1907         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1908         (tree_code_size): Ditto.
1909         * tree.h (struct tree_memory_tag): Remove parent_var.
1910         (struct tree_struct_field_tag): New.
1911         (SFT_OFFSET): New.
1912         (SFT_SIZE): New.
1913         (union tree_node): Add sft member.
1914         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1915         specially here.
1916         (create_sft): Add size and offset argument, set SFT_OFFSET and
1917         SFT_SIZE.
1918         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1919         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1920         * tree-flow-inline.h (get_subvar_at): Update for
1921         SFT_OFFSET/SFT_SIZE.
1922         (var_can_have_subvars): Ditto.
1923         (overlap_subvar): Ditto.
1924         * print-tree.c (print_node): Print out interesting things for
1925         SFT's.
1926         * tree-flow.h (struct subvar): Remove offset and size members.
1927         * tree-ssa-operands.c (get_expr_operands): Update for
1928         get_indirect_ref_operands changes.
1929         (get_indirect_ref_operands): Call add_virtual_operand instead of
1930         add_stmt_operand.  Only recurse on base var if requested.
1931         (access_can_touch_variable): New function.
1932         (add_stmt_operand): Split virtual operand handling into ...
1933         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1934         arguments.  Prune alias sets.
1935         (add_call_clobber_ops): Call add_virtual_operand.
1936
1937 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1938
1939         PR middle-end/26300
1940         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1941
1942         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1943         than TREE_CODE as index into omp_clause_num_ops array.
1944
1945 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1946
1947         PR rtl-optimization/26184
1948         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1949         uses_of_defs.
1950         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1951         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1952         must_precede, must_follow and tobe_scheduled.
1953
1954         PR other/26147
1955         * opts.c (common_handle_option): Free new_option pointer.
1956         * df-core.c (df_analyze): Free postorder pointer.
1957
1958 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1959
1960         * Makefile.in: Fix the examples about the use of stamps
1961
1962 2006-02-15  Michael Matz  <matz@suse.de>
1963
1964         PR middle-end/22275
1965
1966         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1967         influenced by maximum_field_alignment or DECL_PACKED.
1968         (update_alignment_for_field): Ditto.
1969         (place_field): Ditto.
1970         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1971         this behaviour.
1972
1973 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1974
1975         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1976         (debug_flow_info): Pass it.
1977         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1978         * bb-reorder.c (reorder_basic_blocks): Likewise.
1979         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1980         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1981         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1982         * gcse.c (gcse_main, bypass_jumps): Likewise.
1983         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1984         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1985         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1986         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1987         * rtl.h (dump_flow_info): Adjust prototype.
1988         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1989         * var-tracking.c (variable_tracking_main): Likewise.
1990         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1991         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1992         options.
1993
1994 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1995
1996         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1997         construction.
1998
1999 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2000
2001         PR tree-optimization/26209
2002         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
2003         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
2004         eh edges.
2005         * tree-cfg.c (replace_uses_by): Do not alter cfg.
2006
2007 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2008
2009         PR middle-end/23670
2010         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
2011         (X,Y) and the corresponding symmetry related transformations.
2012         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
2013         (X,Y) and its symmetry related transformations.
2014
2015 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2016
2017         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
2018         and GEU.
2019
2020 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
2021
2022         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
2023
2024 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
2025
2026         PR bootstrap/26053
2027         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
2028         support COMDAT group.
2029         * configure: Regenerate.
2030
2031 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2032
2033         PR middle-end/26279
2034         PR middle-end/26280
2035         PR middle-end/26283
2036         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
2037
2038 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
2039
2040         Fix PR tree-optimization/26260
2041
2042         * doc/invoke.texi (max-fields-for-field-sensitive): Document
2043         param.
2044         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
2045         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
2046         * tree-ssa-structalias.c (create_variable_info_for): Use
2047         MAX_FIELDS_FOR_FIELD_SENSITIVE.
2048
2049 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2050
2051         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
2052         Document.
2053         * tree-ssa-loop-niter.c (number_of_iterations_ne,
2054         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
2055         of the ending condition.
2056         * tree-ssa-loop-manip.c: Include params.h.
2057         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
2058         tree_unroll_loop): New functions.
2059         * tree-pass.h (pass_loop_prefetch): Declare.
2060         * loop.c (rest_of_handle_loop_optimize): Test for
2061         -fprefetch-loop-arrays-rtl.
2062         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
2063         * timevar.def (TV_TREE_PREFETCH): New timevar.
2064         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
2065         pass_loop_prefetch): New.
2066         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
2067         (cleanup_tree_cfg_loop): Call scev_reset.
2068         * common.opt (fprefetch-loop-arrays-rtl): Add.
2069         * tree-ssa-loop-prefetch.c: New file.
2070         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
2071         (new_temp_expr_table): Initialize expr_vars.
2072         (free_temp_expr_table): Cleanup expr_vars.
2073         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
2074         expressions from being merged into one.
2075         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
2076         (struct tree_niter_desc): Add control, bound and cmp fields.
2077         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
2078         Declare.
2079         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
2080         (tree-cfgcleanup.o): Add SCEV_H dependency.
2081         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
2082         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
2083
2084 2006-02-14  Richard Guenther  <rguenther@suse.de>
2085
2086         PR tree-optimization/26258
2087         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
2088         in PHI argument processing.
2089
2090 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
2091
2092         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
2093         new expression in the requested machine mode.
2094
2095 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2096
2097         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
2098         directly, instead let do_compare_rtx_and_jump handle this for us.
2099         * expr.c (expand_expr_real_1): Likewise.
2100         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
2101         before do_jump_by_parts_greater.
2102         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
2103         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
2104
2105 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2106
2107         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
2108
2109 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2110
2111         PR rtl-optimization/26235
2112         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
2113         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
2114         format.
2115
2116 2006-02-13  Jeff Law  <law@redhat.com>
2117
2118         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
2119         TRUTH_XOR_EPR.
2120
2121 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
2122
2123         PR middle-end/26092
2124         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
2125         twice if decl is a builtin.  When trying again, call get_callee_fndecl
2126         first to verify it is still a builtin.
2127
2128 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
2129
2130         * dwarf2out.c (base_type_die): Don't add AT_name here.
2131         (subrange_type_die): Don't add AT_name here.
2132         (modified_type_die): Rearrange code flow.  Do add AT_name here.
2133
2134 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2135
2136         PR rtl-optimization/26247
2137         PR rtl-optimization/26248
2138         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2139
2140 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2141
2142         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2143         * config/fixtfdi.c: Likewise.
2144         * config/fixunstfdi.c: Likewise.
2145         * config/floatditf.c: Likewise.
2146
2147 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2148
2149         PR middle-end/24427
2150         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2151         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2152         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2153         (X&(C1&~C2))|C2.
2154         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2155
2156 2006-02-13  Josh Conner  <jconner@apple.com>
2157
2158         PR target/25376
2159         * varasm.c (function_section): Check for section name before
2160         calling select_section on targets that define
2161         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2162         unlikely_text_section instead of hot_function_section if
2163         first_function_block_is_cold.
2164
2165 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2166
2167         PR middle-end/25335
2168         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2169
2170 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2171
2172         PR rtl-optimization/26222
2173         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2174         after tree->rtl expansion.
2175         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2176         before passing it to emit_move_insn.
2177
2178 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2179
2180         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2181         default.
2182         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2183         Clarify documentation.
2184         * c-common.h (warn_write_strings): Remove.
2185         * c-common.c (warn_write_strings): Likewise.
2186         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2187         default for C++.
2188
2189 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2190
2191         PR middle-end/25724
2192         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2193         (do_jump_parts_zero_rtx): New function renamed from
2194         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2195         (do_jump_parts_equality_rtx): New function split out from
2196         do_jump_parts_equality.  Old implementation renamed as above.
2197         Call do_jump_parts_zero_rtx if either operand is zero.
2198         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2199         do all of the heavy lifting.
2200         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2201         calling either do_jump_by_parts_greater_rtx or
2202         do_jump_by_parts_equality_rtx.
2203         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2204         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2205         moved to do_compare_rtx_and_jump, call it directly.
2206         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2207         mode argument.  Call do_compare_rtx_and_jump.
2208         (emit_case_nodes): Update calls to do_jump_if_equal.
2209
2210 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2211
2212         PR rtl-optimization/26225
2213         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2214
2215 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2216
2217         PR rtl-optimization/26232
2218         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2219
2220 2006-02-11  Jason Merrill  <jason@redhat.com>
2221
2222         PR tree-opt/24365
2223         * tree-inline.c (declare_return_variable): Just don't use the
2224         modify target if it's a gimple complex reg and the return slot
2225         isn't.
2226
2227 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2228
2229         * doc/contrib.texi: Update my entry.
2230
2231 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2232
2233         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2234
2235 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2236
2237         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2238         expensive.
2239
2240 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2241
2242         * doc/invoke.texi (-floop-optimize2): Removed.
2243         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2244         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2245         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2246         * common.opt (floop-optimize2): Removed.
2247         (fmove-loop-invariants): Enabled by default.
2248
2249 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2250
2251         * tree-if-conv.c (combine_blocks): Free the result of
2252         get_loop_exit_edges.
2253
2254 2006-02-10  Jeff Law  <law@redhat.com>
2255
2256         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2257
2258         PR tree-optimization/26213
2259         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2260         loop trying to follow SSA_NAME_VALUE chains.
2261
2262 2006-02-10  Richard Guenther  <rguenther@suse.de>
2263
2264         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2265         deal with structures that end in implicitly variable sized arrays.
2266
2267 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2268
2269         PR rtl-optimization/24762
2270         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2271         eh edges.
2272
2273 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2274
2275         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2276         (struct ivopts_data): Add regs_used field.
2277         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2278         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2279         instead of loop_data->regs_used;
2280         (free_loop_data): Do not free aux fields for loops.
2281         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2282         and tree_ssa_iv_optimize_finalize.
2283
2284 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2285
2286         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2287
2288 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2289
2290         PR target/26141
2291         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2292         computing the effective result type.
2293
2294 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2295
2296         PR inline-asm/16194
2297         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2298         (tree_overlaps_hard_reg_set): Declare.
2299         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2300         type and signature to match function type expected by walk_tree.
2301         (tree_overlaps_hard_reg_set): New function.
2302         (decl_conflicts_with_clobbers_p): Rename to:
2303         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2304         Use tree_overlaps_hard_reg_set.  Changed caller.
2305         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2306         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2307         * cris.c (cris_md_asm_clobbers): Likewise.
2308
2309 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2310
2311         * reload1.c (emit_input_reload_insns): Delete code that tries to
2312         inherit using find_equiv_reg.
2313
2314 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2315
2316         * c-common.h (flag_const_strings): Don't declare.
2317         * c-common.c (flag_const_strings): Remove.
2318         * c.opt (fconst_strings): Remove.
2319         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2320         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2321         (c_common_init_options): Don't set flag_const_strings.
2322         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2323
2324 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2325
2326         * arm.md (tlobits_cbranch): New pattern.
2327         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2328         testing a single bit.
2329
2330 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2331
2332         PR tree-opt/26179
2333         * tree-ssa-pre.c (create_component_ref_by_pieces):
2334         Handle RETURN_DECL like VAR_DECL.
2335
2336 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2337
2338         PR middle-end/26134
2339         * fold-const.c (fold_indirect_ref_1): Fold
2340         "*(foo *)&complexfoo" to "__real__ complexfoo"
2341         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2342
2343 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2344
2345         * tree-flow-inline.h (var_can_have_subvars):
2346         Volatile variables should not have subvariables.
2347
2348 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2349
2350         PR 26180
2351         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2352         multiplying unsigned values.
2353         Tidy comments.
2354
2355 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2356
2357         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2358
2359 2006-02-08  Jason Merrill  <jason@redhat.com>
2360
2361         PR c++/25979
2362         * tree.def: Elaborate on difference from MODIFY_EXPR.
2363         * doc/c-tree.texi (INIT_EXPR): Likewise.
2364         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2365         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2366         (gimplify_target_expr): Likewise.
2367         (gimplify_cond_expr): Remove target handling.
2368         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2369         (gimplify_expr): Clobber it here.
2370         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2371         Do return slot optimization if we have an INIT_EXPR.
2372
2373         PR tree-opt/24365
2374         * tree-inline.c (declare_return_variable): Also clear
2375         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2376
2377         PR c++/16405
2378         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2379
2380         PR middle-end/22439
2381         * gimplify.c (gimplify_one_sizepos): Fix typo.
2382
2383 2006-02-08  Jeff Law  <law@redhat.com>
2384
2385         PR tree-optimization/21417
2386         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2387         across a backedge if the control statement at the end of the
2388         block is data dependent on other statements in the same block.
2389         (record_temporary_equivalences_from_stmts): Remove over-conservative
2390         test for threading across backedges.
2391
2392         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2393         control statement, handle all three special cases in the same
2394         manner as they all have the same desired solution.  No longer
2395         special case edge flag updating when the post dominator is
2396         the exit block.
2397
2398 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2399
2400         * tree.def (CHAR_TYPE): Remove.
2401         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2402         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2403         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2404         (gen_string_type_die): Delete unreachable function.
2405
2406         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2407         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2408         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2409         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2410         * builtins.c (type_to_class): Likewise.
2411         * fold-const.c (fold_convert, build_range_check,
2412         merge_ranges): Likewise.
2413         * expr.c (count_type_elements): Likewise.
2414         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2415         * stor-layout.c (layout_type): Likewise.
2416         * ipa-type-escape.c (type_to_consider): Likewise.
2417         * gimplify.c (omp_firstprivatize_type_sizes,
2418         gimplify_type_sizes): Likewise.
2419         * explow.c (promote_mode): Likewise.
2420         * tree-sra.c (is_sra_scalar_type): Likewise.
2421         * varasm.c (output_constant): Likewise.
2422         * tree-inline.c (remap_type_1): Likewise.
2423         * convert.c (convert_to_pointer, convert_to_real,
2424         convert_to_integer, convert_to_complex): Likewise.
2425
2426 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2427
2428         * df-scan.c (df_def_record_1): A set destination may
2429         be a parallel regardless of mode.
2430
2431 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2432
2433         PR target/22209
2434         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2435         * config/mips/_tilib.c: Remove.
2436         * config/fixtfdi.c: New libgcc source file.
2437         * config/fixunstfdi.c: New source file.
2438         * config/floatditf.c: New source file.
2439         * config/floatunditf.c: New souce file.
2440         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2441         files above instead of config/mips/_tilib.c.
2442         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2443
2444 2006-02-08  Jeff Law  <law@redhat.com>
2445
2446         PR tree-optimization/26169
2447         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2448         threading jumps.
2449
2450 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2451
2452         * df.h (DF_REG_SIZE): Return the length of the initialized
2453         part of the array.
2454
2455 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2456
2457         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2458         __muldf3): Return a correctly signed zero.
2459
2460 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2461
2462         * passes.c (register_one_dump_file): Accept the current properties
2463         instead of pass number.  Adjust call to dump_register.  Remove
2464         duplicated code.
2465         (register_dump_files): Now a wrapper around...
2466         (register_dump_files_1): ... this one.  Do not modify the pass
2467         structure.
2468         (next_pass_1): Cosmetic fix.
2469         (execute_todo): Keep second parameter only.  Use curr_properties
2470         instead of fetching it from the pass structure.  Check and set
2471         last_verified.
2472         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2473         instead of fetching it from the pass structure.  Fix calls to
2474         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2475         after running the pass.  Reset last_verified.
2476         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2477         at the beginning.
2478         (FIRST_AUTO_NUMBERED_DUMP): New.
2479         (dump_register): Remove "num" parameter, assign it within the
2480         function.
2481         (get_dump_file_name): Modify template for dumps.
2482         * tree-dump.h (dump_register): Adjust prototype.
2483         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2484         (PROP_trees): Add PROP_gimple_lomp.
2485         (TODO_set_props): New.
2486         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2487         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2488         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2489
2490 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2491
2492         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2493         (sparc64-*-linux*): Likewise.
2494         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2495         * config/sparc/t-linux: New file.
2496         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2497         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2498         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2499         -m32 -mlong-double-128.
2500
2501         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2502         * config/alpha/t-linux: New file.
2503         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2504
2505         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2506         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2507         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2508         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2509         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2510         (CPP_ARCH32_SPEC): Remove.
2511
2512 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2513
2514         PR tree-optimization/26145
2515         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2516         bbs pointer.
2517
2518 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2519
2520         PR target/26109
2521         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2522         >= 240000 when generating code for SOM runtime.
2523         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2524         to $$dyncall when generating code for SOM runtime..
2525
2526 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2527
2528         PR c++/18150
2529         * doc/invoke.texi (-Wsequence-point): Update documentation
2530         that -Wsequence-point is implemented for C++ as well.
2531
2532 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2533
2534         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2535         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2536         (LIB_SPEC): Likewise.
2537         * doc/invoke.texi (SPARC options): Document -pthread.
2538
2539 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2540
2541         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2542         PIC addresses.
2543
2544 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2545
2546         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2547         Correct comment describing BOOLEAN_TYPE.
2548
2549 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2550
2551         * c.opt: C++ frontend supports -Wdiv-by-zero.
2552         * c-opts.c (c_common_handle_option): Remove dead case.
2553
2554 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2555
2556         * configure.ac (TLS assembler check): Do not enable TLS by
2557         default on SPARC/Solaris before version 10.
2558         * configure: Regenerate.
2559
2560 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2561
2562         * doc/invoke.texi (xl-compat): Document conversion and support
2563         routine names.
2564
2565 2006-02-07  Jeff Law  <law@redhat.com>
2566
2567         * tree-vrp.c (find_conditional_asserts): Update comments.
2568         (simplify_stmt_for_jump_threading): New.
2569         (identify_jump_threads, finalize_jump_threads): New.
2570         (vrp_finalize): Call identify_jump_threads.
2571         (execute_vrp): Call finalize_jump_threads.
2572         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2573         (vrp_element, vrp_data, vrp_element_p): Remove.
2574         (vrp_hash_elt, vrp_variables_stack): Remove.
2575         (vrp_hash, vrp_eq, record_range): Remove.
2576         (simplify_cond_and_lookup_avail_expr): Remove.
2577         (extract_range_from_cond): Remove.
2578         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2579         (simplify_stmt_for_jump_threading): New.
2580         (dom_thread_across_edge): New wrapper.
2581         (tree_ssa_dominator_optimize): No longer initialize or
2582         finalize any of the VRP datastructures.  Remove iteration
2583         step and simplify as a result of removal of iteration step.
2584         (pass_dominator): Perform a cfg cleanup after DOM.
2585         (dom_opt_finalize_block): Use the new common routines
2586         for threading jumps.  Simplify stack management slightly.
2587         No longer need to unwind VRP state.
2588         (record_equivalences_from_incoming_edge): No longer record
2589         VRP information.
2590         (eliminate_redundant_computations): No longer call
2591         simplify_cond_and_lookup_avail_expr.
2592         * tree-flow.h (potentially_threadable_block): Prototype.
2593         (thread_across_edge): Likewise.
2594         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2595         (tree-ssa-threadedge.o): Add dependencies.
2596         * tree-ssa-threadedge.c: New file.
2597         * passes.c (init_optimization_passes): Merge PHIs before
2598         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2599
2600 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2601
2602         * df-core.c (df_set_blocks): Do not dereference function pointers.
2603         (df_finish1): Likewise.
2604         (df_hybrid_search_forward): Likewise.
2605         (df_hybrid_search_backward): Likewise.
2606         (df_iterative_dataflow): Likewise.
2607         (df_analyze_problem): Likewise.
2608         (df_compact_blocks): Likewise.
2609         (df_dump): Likewise.
2610         * df-scan.c (df_rescan_blocks): Likewise.
2611         (df_record_entry_block_defs): Likewise.
2612
2613         * genconditions.c (write_conditions): Guard the definition of
2614         'insn_conditions' with the check on GCC version.
2615         (write_writer): Guard the traversal 'insn_conditions' with
2616         the check on GCC version.
2617
2618 2006-02-07  Richard Guenther  <rguenther@suse.de>
2619
2620         PR c++/26140
2621         Revert
2622         2006-01-30  Richard Guenther  <rguenther@suse.de>
2623         PR c++/23372
2624         * gimplify.c (gimplify_target_expr): Handle easy cases
2625         without creating a temporary.
2626
2627 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2628
2629         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2630         use of float in probability computations.  Use edge probabilities
2631         in place of statically computed probabilities.
2632         (min_spec_prob): New static variable.
2633         (schedule_insns): Initialize it.
2634         (GET_SRC_PROB): Removed.
2635         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2636
2637 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2638
2639         PR debug/24444
2640         * config/ia64/unwind-ia64.c: Revert last change.
2641         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2642         (INCOMING_FRAME_SP_OFFSET): Define.
2643
2644 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2645
2646         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2647
2648 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2649
2650         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2651         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2652         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2653         (ix86_return_in_memory): Handle TDmode.
2654         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2655         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2656
2657 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2658
2659         * reorg.c (dbr_schedule): Use dump_file instead of file.
2660
2661 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2662
2663         PR target/25917
2664         * config/ia64/predicates.md (extr_len_operand): New predicate.
2665         * config/ia64/ia64.md (extv): Tighten constraints.
2666         (extzv): Ditto.
2667         (*tbit_and_2): Ditto.
2668         (*tbit_and_3): Ditto.
2669         (*tbit_or_2): Ditto.
2670         (*tbit_or_3): Ditto.
2671         (*bit_zero): Ditto.
2672         (*bit_one): Ditto.
2673
2674 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2675
2676         PR target/23359
2677         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2678
2679 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2680
2681         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2682         loop_optimizer_init and loop_optimizer_finalize
2683         * tree-ssa-sink.c (execute_sink_code): Ditto.
2684         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2685         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2686         tree_ssa_loop_done): Ditto.
2687         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2688         * sched-ebb.c: Include output.h.
2689         (schedule_ebbs): Do not use dump argument.
2690         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2691         * loop.c (loop_dump_stream): Removed.
2692         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2693         argument.
2694         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2695         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2696         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2697         loop_iterations, strength_reduce, record_biv, record_giv,
2698         final_giv_value, check_final_value, check_ext_dependent_givs,
2699         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2700         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2701         dump_file instead of loop_dump_stream.
2702         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2703         argument dump_file.
2704         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2705         dump argument.
2706         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2707         * haifa-sched.c: Include output.h
2708         (schedule_insns, sched_init): Do not use dump argument.
2709         * mode-switching.c (optimize_mode_switching): Ditto.
2710         * modulo-sched.c (stats_file): Removed.
2711         (print_node_sched_params): Do not call argument dump_file.
2712         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2713         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2714         of stats_file.
2715         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2716         use dump argument.
2717         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2718         rtl_loop_init, rtl_loop_done): Ditto.
2719         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2720         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2721         Ditto.
2722         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2723         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2724         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2725         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2726         * emit-rtl.c (renumber_insns): Ditto.
2727         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2728         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2729         * regclass.c (regclass): Ditto.
2730         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2731         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2732         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2733         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2734         Ditto.
2735         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2736         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2737         to regclass.
2738         * gcse.c (gcse_file, debug_stderr): Removed.
2739         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2740         rest_of_handle_gcse): Do not use dump argument.
2741         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2742         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2743         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2744         compute_code_hoist_vbeinout, compute_code_hoist_data,
2745         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2746         compute_store_table, build_store_vectors, insert_insn_start_bb,
2747         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2748         store_motion): Use dump_file instead of gcse_file.
2749         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2750         * profile.c (profile_dump_file): Removed.
2751         (branch_prob): Use dump_file instead of profile_dump_file.
2752         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2753         dump_file.
2754         * tree-ssa-copy.c (dump_copy_of): Ditto.
2755         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2756         dump file to life_analysis.
2757         * bt-load.c (branch_target_load_optimize): Ditto.
2758         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2759         renumber_insns.
2760         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2761         regclass, dbr_schedule): Declaration changed.
2762         * sched-int.h (sched_init): Declaration changed.
2763         * tree-profile.c (tree_profile_dump_file): Removed.
2764         (tree_profile_hooks): Removed profile_dump_file hook.
2765         * rtl-profile (rtl_profile_dump_file): Removed.
2766         (rtl_profile_hooks): emoved profile_dump_file hook.
2767         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2768         changed.
2769         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2770         * tree-cfg.c (build_tree_cfg): Ditto.
2771         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2772         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2773         Declaration changed.
2774         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2775         life_analysis and schedule_insns.
2776         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2777         life_analysis.
2778         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2779         dbr_schedule.
2780         * config/mips/mips.c (mips_reorg): Ditto.
2781         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2782         schedule_ebbs.
2783
2784 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2785
2786         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2787         (s390_mangle_fundamental_type): New.
2788         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2789         Define.
2790
2791         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2792         (alpha_mangle_fundamental_type): New.
2793         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2794         Define.
2795
2796         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2797         Define.
2798         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2799         Define.
2800         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2801         (sparc_mangle_fundamental_type): New.
2802
2803 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2804
2805         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2806         (s390x-*-linux*): Likewise.
2807         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2808         * config/s390/t-linux: New file.
2809
2810 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2811
2812         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2813         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2814
2815 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2816
2817         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2818         (ANTIC_SAFE_LOADS): New macro.
2819         (find_or_generate_expression): Add prototype.
2820         (set_contains_value): Allow null set for sake of not always having
2821         to allocate ANTIC_SAFE_LOADS.
2822         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2823         Allow COMPONENT_REF too.
2824         (valid_in_set): Allow COMPONENT_REF.
2825         Check ANTIC_SAFE_LOADS too.
2826         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2827         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2828         rename.
2829         (can_PRE_operation): Add COMPONENT_REF.
2830         (create_component_ref_by_pieces): New function.
2831         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2832         (insert_aux): Move AGGREGATE_TYPE_P check here.
2833         (compute_avail): Set bb local stmt uids.
2834         (pass_pre): Use TODO_update_ssa_only_virtuals.
2835
2836 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2837
2838         * configure.ac: Unconditionally disable decimal float by default.
2839         * configure: Regenerate.
2840
2841 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2842
2843         * read-rtl.c (read_name): Terminate reading on EOF.
2844
2845 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2846
2847         * dfp.c (decimal_real_arithmetic): Change second argument type
2848         from int to enum tree_code. Do not always return true, but now
2849         return result of any call to decimal_do helper functions.
2850         * dfp.h (decimal_real_arithmetic): Update prototype.
2851
2852 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2853
2854         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2855
2856 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2857
2858         PR tree-opt/25251
2859         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2860         forced labels.
2861
2862 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2863
2864         * tree-vrp.c (cfg_loops): Removed.
2865         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2866         Use current_loops instead of cfg_loops.  Pass flags to
2867         loop_optimizer_init.
2868         * cfgloopmanip.c (fix_loop_structure): Update only available
2869         information.
2870         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2871         loop_optimizer_init.
2872         * modulo-sched.c (build_loops_structure): Removed.
2873         (sms_schedule): Use loop_optimizer_init.
2874         * loop-init.c (loop_optimizer_init): Use flags to determine
2875         which properties of loops to prepare.
2876         (rtl_loop_init): Pass flags to loop_optimizer_init.
2877         * tree-ssa-sink.c (execute_sink_code): Ditto.
2878         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2879         * tree-ssa-pre.c (init_pre): Ditto.
2880         * cfgloop.h (LOOPS_NORMAL): New.
2881         (loop_optimizer_init): Declaration changed.
2882
2883 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2884
2885         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2886         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2887         pa/t-pa.
2888         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2889         pa/t-pa.
2890         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2891         pa/x-ada.
2892         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2893         * pa/t-pa64: Delete quadlib.c rule.
2894         * pa/x-ada: Revert last change.
2895         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2896
2897 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2898
2899         PR rtl-optimization/26087
2900         * rtlanal.c (canonicalize_condition): Do not cross basic block
2901         boundaries.
2902
2903 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2904
2905         PR debug/24444
2906         * config/ia64/ia64.c: Include debug.h.
2907         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2908         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2909         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2910         (process_epilogue, process_set, process_for_unwind_directive):
2911         Output unwind info only if requested.  Add CFA info if requested.
2912         Add new arguments as needed.  Adjust callers.
2913         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2914         incorrect default.
2915         (DWARF2_FRAME_INFO): Define to zero.
2916         * config/ia64/unwind-ia64.c: Remove code that compensated for
2917         the CFA offset error fixed above.
2918         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2919         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2920         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2921         -funwind-tables and -fexceptions to enable frame info.
2922         (dwarf2out_frame_init): Define initial CFA even if
2923         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2924         DWARF2_UNWIND_INFO is nonzero, not just defined.
2925         (dwarf2out_frame_finish): Output non-EH call frame info only
2926         if DWARF2_FRAME_INFO is nonzero.
2927         (convert_cfa_to_loc_list,
2928         compute_frame_pointer_to_cfa_displacement): Define even if
2929         unwind info is not supported.
2930         (gen_subprogram_die): Use the above unconditionally.  Remove
2931         legacy alternate code.
2932         * toplev.c (compile_file): Compile in call to
2933         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2934         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2935
2936 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2937             Jakub Jelinek  <jakub@redhat.com>
2938
2939         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2940         IBM extended float format long double as "g" on powerpc*-linux.
2941
2942 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2943
2944         PR target/25926
2945         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2946         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2947
2948 2006-02-03  Jason Merrill  <jason@redhat.com>
2949
2950         PR c++/25979
2951         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2952
2953         PR middle-end/25977
2954         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2955         on the return slot if it's an NRV.
2956
2957 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2958
2959         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2960         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2961         rewrite_use): Do not handle USE_OUTER.
2962         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2963         add_iv_outer_candidates, may_replace_final_value,
2964         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2965         (find_interesting_uses_op): Functionality of
2966         find_interesting_uses_outer_or_nonlin moved here.
2967         (find_interesting_uses_outside): Use find_interesting_uses_op.
2968
2969 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2970
2971         PR target/25960
2972         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2973
2974 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2975             Ulrich Weigand  <uweigand@de.ibm.com>
2976
2977         PR target/25864
2978         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2979         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2980         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2981         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2982         and dxr fields.
2983         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2984         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2985         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2986         Define secondary reloads for TFmode moves.
2987         (constant_modes): Add TFmode.
2988         (NR_C_MODES): Set to 8.
2989         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2990         builtin define.
2991         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2992         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2993         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2994         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2995         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2996         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2997         (FPR mode macro): Add TFmode.
2998         (DSF mode macro): New.
2999         (<de>, <dee> mode attributes): Removed.
3000         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
3001         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
3002         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
3003         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
3004         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
3005         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
3006         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
3007         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
3008         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
3009         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
3010         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
3011         "*negabs<mode>2", "sqrt<mode>2"):
3012         Changed <de> to <xde>. R constraint replaced by <Rf>.
3013         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
3014         <Rf>.
3015         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
3016         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
3017         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
3018         splitters.
3019         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
3020         "extenddftf2", "extendsftf2"): New expanders.
3021         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
3022         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
3023         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
3024         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
3025         New options.
3026         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
3027         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
3028         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
3029         __floatditf): Add a GCC_4.1.0 symbol version tag.
3030         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
3031         the new options.
3032
3033 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
3034
3035         PR target/25377
3036         * config/i386/i386.c (ix86_function_ok_for_sibcall):
3037         Use targetm.binds_local_p instead of TREE_PUBLIC.
3038
3039 2006-02-02  Roger Sayle  <roger@eyesopen.com>
3040
3041         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
3042         on INTEGER_TYPEs to indicate that it denotes a character type.
3043         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
3044         signed_char_type_node, unsigned_char_type_node and char_type_node.
3045         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
3046         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
3047         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
3048
3049 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
3050             Daniel Berlin  <dberlin@dberlin.org>
3051
3052         * tree-tailcall.c (arg_needs_copy_p): New function.
3053         (eliminate_tail_call): Use arg_needs_copy_p.
3054         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
3055         (add_virtual_phis): New function.
3056
3057 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
3058
3059         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
3060         #ignore instead of #scratch for %g7 .register directive.
3061
3062 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
3063
3064         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
3065         object files.
3066
3067 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
3068
3069         * flow.c (calculate_global_regs_live): Assert that there aren't any
3070         EDGE_FAKE edges.
3071
3072 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
3073
3074         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
3075         what its name says.
3076         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
3077         bsi_after_labels iterator.
3078         * tree-if-conv.c (find_phi_replacement_condition,
3079         replace_phi_with_cond_modify_expr): Likewise.
3080         * tree-scalar-evolution.c (scev_const_prop): Likewise.
3081         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
3082
3083 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3084
3085         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
3086
3087 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3088
3089         PR 25990
3090         * tree-cfg.c (move_block_to_fn): Clear out the basic block
3091         array after growing it.
3092
3093 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3094
3095         PR middle-end/24901
3096         * fold-const.c (fold_checksum_tree): Change type of buf.
3097
3098 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
3099
3100         * reload.c (push_secondary_reload): Initialize t_icode.
3101
3102 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
3103
3104         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
3105         -msoft-float -mlong-double-128 only issue a warning, but don't
3106         swich to DFmode long double.
3107
3108 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
3109
3110         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
3111         has a constant equivalent, iterate over equivalents for arg0,
3112         calling simplify_relational_operation and if there's a result
3113         cheaper than X, apply fold_rtx and return the result.
3114
3115 2006-02-01  Jan Hubicka  <jh@suse.cz>
3116
3117         * opts.c (no_unit_at_a_time_default): New global variable.
3118         (decode_options): Use it.
3119         * opts.h (no_unit_at_a_time_default): Declare.
3120
3121 2006-02-01  Paul Brook  <paul@codesourcery.com>
3122
3123         * function.c (assign_parm_setup_reg): Use function argument promotion
3124         rules.
3125         * expr.c (expand_expr_real_1): Use function argument promotion rules
3126         for PARM_DECLs.
3127
3128 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3129
3130         * gcc.c (process_command): Change j to 'unsigned int'.
3131
3132 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3133
3134         PR middle-end/26001
3135         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
3136         Use the corrected index for the character
3137         out of the string constant.
3138
3139 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3140
3141         * mode-switching.c (optimize_mode_switching): Fix size
3142         allocated for bb_info[n_entities].
3143
3144 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3145
3146         * gcc.c (main): Correct type that is allocated for
3147         explicit_link_files.
3148
3149 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3150
3151         * config/s390/s390.c (init_alignment_context): Set
3152         ALIAS_SET_MEMORY_BARRIER on the MEM.
3153         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3154
3155 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3156
3157         PR middle-end/25933
3158         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3159         dom_bbs pointer.
3160         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3161         call to tpa_init.
3162
3163 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3164
3165         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3166         * regrename.c: Ditto.
3167         * tree-ssa-loop-im.c: Ditto.
3168         * tree-dump.c: Ditto.
3169         * tree-complex.c: Ditto.
3170         * genrecog.c: Ditto.
3171         * tree-ssa-threadupdate.c: Ditto.
3172         * tracer.c: Ditto.
3173         * java/class.c: Ditto.
3174         * java/jcf-parse.c: Ditto.
3175         * java/resource.c: Ditto.
3176         * java/except.c: Ditto.
3177         * java/jvspec.c: Ditto.
3178         * java/jcf-write.c: Ditto.
3179         * java/jcf-path.c: Ditto.
3180         * java/gjavah.c: Ditto.
3181         * java/zextract.c: Ditto.
3182         * java/jcf-io.c: Ditto.
3183         * java/jcf.h: Ditto.
3184         * java/buffer.c: Ditto.
3185         * java/lang.c: Ditto.
3186         * java/parse-scan.y: Ditto.
3187         * java/lex.c: Ditto.
3188         * java/lex.h: Ditto.
3189         * cfgloopmanip.c: Ditto.
3190         * postreload-gcse.c: Ditto.
3191         * tree-ssa-loop-manip.c: Ditto.
3192         * postreload.c: Ditto.
3193         * tree-ssa-loop-ch.c: Ditto.
3194         * loop.c: Ditto.
3195         * ipa-cp.c: Ditto.
3196         * cppspec.c: Ditto.
3197         * diagnostic.c: Ditto.
3198         * final.c: Ditto.
3199         * genoutput.c: Ditto.
3200         * gcc.c: Ditto.
3201         * cfghooks.c: Ditto.
3202         * cfgloopanal.c: Ditto.
3203         * objc/objc-act.c: Ditto.
3204         * gcov.c: Ditto.
3205         * genextract.c: Ditto.
3206         * genautomata.c: Ditto.
3207         * pretty-print.c: Ditto.
3208         * genemit.c: Ditto.
3209         * cgraphunit.c: Ditto.
3210         * flow.c: Ditto.
3211         * df-scan.c: Ditto.
3212         * haifa-sched.c: Ditto.
3213         * dominance.c: Ditto.
3214         * dbxout.c: Ditto.
3215         * tree-ssa-loop-ivopts.c: Ditto.
3216         * df-core.c: Ditto.
3217         * mode-switching.c: Ditto.
3218         * modulo-sched.c: Ditto.
3219         * graph.c: Ditto.
3220         * ipa-pure-const.c: Ditto.
3221         * cse.c: Ditto.
3222         * fix-header.c: Ditto.
3223         * web.c: Ditto.
3224         * tree-stdarg.c: Ditto.
3225         * ipa-utils.c: Ditto.
3226         * loop-init.c: Ditto.
3227         * ipa-inline.c: Ditto.
3228         * cfganal.c: Ditto.
3229         * global.c: Ditto.
3230         * alloc-pool.c: Ditto.
3231         * dwarf2out.c: Ditto.
3232         * opts.c: Ditto.
3233         * genattrtab.c: Ditto.
3234         * tree-ssa-loop-ivcanon.c: Ditto.
3235         * predict.c: Ditto.
3236         * timevar.c: Ditto.
3237         * lcm.c: Ditto.
3238         * fortran/gfortranspec.c: Ditto.
3239         * regmove.c: Ditto.
3240         * local-alloc.c: Ditto.
3241         * langhooks.c: Ditto.
3242         * function.c: Ditto.
3243         * tree-vectorizer.c: Ditto.
3244         * gcse.c: Ditto.
3245         * ipa-type-escape.c: Ditto.
3246         * alias.c: Ditto.
3247         * tree-if-conv.c: Ditto.
3248         * profile.c: Ditto.
3249         * ipa.c: Ditto.
3250         * tree-data-ref.c: Ditto.
3251         * loop-unroll.c: Ditto.
3252         * treelang/treetree.c: Ditto.
3253         * calls.c: Ditto.
3254         * bt-load.c: Ditto.
3255         * ggc-common.c: Ditto.
3256         * except.c: Ditto.
3257         * coverage.c: Ditto.
3258         * cselib.c: Ditto.
3259         * tree-cfgcleanup.c: Ditto.
3260         * tree-ssa-pre.c: Ditto.
3261         * cfgcleanup.c: Ditto.
3262         * loop-invariant.c: Ditto.
3263         * loop-iv.c: Ditto.
3264         * ipa-prop.c: Ditto.
3265         * print-tree.c: Ditto.
3266         * conflict.c: Ditto.
3267         * ggc-page.c: Ditto.
3268         * sched-deps.c: Ditto.
3269         * regclass.c: Ditto.
3270         * tree-object-size.c: Ditto.
3271         * combine.c: Ditto.
3272         * bb-reorder.c: Ditto.
3273         * resource.c: Ditto.
3274         * var-tracking.c: Ditto.
3275         * cfgloop.c: Ditto.
3276         * df-problems.c: Ditto.
3277         * reg-stack.c: Ditto.
3278         * tlink.c: Ditto.
3279         * gccspec.c: Ditto.
3280         * sched-rgn.c: Ditto.
3281         * tree-ssa-structalias.c: Ditto.
3282         * tree-ssa-reassoc.c: Ditto.
3283         * config/darwin-c.c: Ditto.
3284         * config/darwin.c: Ditto.
3285         * config/arm/arm.c: Ditto.
3286         * cfgrtl.c: Ditto.
3287         * collect2.c: Ditto.
3288         * reload1.c: Ditto.
3289
3290 2006-01-31  Nicolas Pitre  <nico@cam.org>
3291
3292         * arm.md (smaxsi3): Make aware of smax_m1.
3293         (smax_m1): New.
3294
3295 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3296
3297         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3298
3299 2006-01-31  Richard Guenther  <rguenther@suse.de>
3300
3301         * doc/invoke.texi (-msselibm): Document.
3302         * target.h (expand_library_builtin): New target hook.
3303         * builtins.c (expand_builtin): Use expand_library_builtin.
3304         (default_expand_library_builtin): New function.
3305         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3306         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3307         (link_gcc_math_spec): Declare.
3308         (static_specs): Add link_gcc_math_spec.
3309         * expr.h (default_expand_library_builtin): Declare.
3310         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3311         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3312         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3313         * config/i386/i386.opt (msselibm): New target option.
3314         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3315         (ix86_init_sse_abi_builtins): New function.
3316         (ix86_expand_library_builtin): Likewise.
3317         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3318         (override_options): Handle error conditions wrt -msselibm.
3319         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3320         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3321         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3322         builtins.
3323
3324 2006-01-31  Richard Guenther  <rguenther@suse.de>
3325         Paolo Bonzini  <bonzini@gnu.org>
3326
3327         * doc/install.texi (--disable-libgcc-math): Document.
3328
3329 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3330
3331         * expr.h (expand_normal): new inline function.
3332         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3333         * dojump.c: use it.
3334         * dwarf2out.c: use it.
3335         * expr.c: use it.
3336         * calls.c: use it.
3337         * expmed.c: use it.
3338         * except.c: use it.
3339         * config/sparc/sparc.c: use it.
3340         * config/i386/i386.c: use it.
3341         * config/rs6000/rs6000.c: use it.
3342         * config/arm/arm.c: use it.
3343         * config/mips/mips.c: use it.
3344         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3345
3346 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3347
3348         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3349         argv to the appropriate type.
3350
3351 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3352
3353         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3354         unreachable code.
3355
3356 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3357
3358         PR target/26018
3359         * config/s390/s390.c (struct machine_function): New flag
3360         decomposed_literal_pool_addresses_ok_p.
3361         (s390_reorg): Set it before final stage of literal pool transforms.
3362         (s390_decompose_address): Only accept displacements of the form
3363         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3364
3365 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3366
3367         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3368         the comparison routine return.
3369
3370 2006-01-30  Michael Matz  <matz@suse.de>
3371
3372         * global.c (find_reg): Only evict for global regs.
3373         Take n_refs into account and dump more info.
3374
3375 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3376
3377         PR target/14798:
3378         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3379         (pragma_trap, pragma_nosave_low_regs): Likewise.
3380         (current_function_anonymous_args): Likewise.
3381         (sh_deferred_function_attributes): New variable.
3382         (sh_deferred_function_attributes_tail): Likewise.
3383         (print_operand): For '@', look up trap_exit attribute.
3384         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3385         handlers, save/restore fpscr, but don't do any other
3386         interrupt-specific saves.
3387         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3388         Fix check for partially saved registers to check for SHmedia.
3389         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3390         (sh_output_function_epilogue): Don't clear any of the removed
3391         variables.
3392         (sh_insert_attributes): Don't check pragma_interrupt.
3393         Insert deferred attributes.  Check that interrupt attribute is
3394         present for other attributes that require its presence.
3395         (sh_attribute_table): Add new attributes trapa_handler and
3396         nosave_low_regs.
3397         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3398         Don't check for pragma_interrupt.  Don't store argument.
3399         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3400         (sh_deferred_function_attributes): Declare.
3401         (sh_deferred_function_attributes_tail): Likewise.
3402         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3403         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3404         (*return_i): Don't use when trap_exit attribute is in effect.
3405         (*return_trapa): New insn pattern.
3406         * sh-c.c: New file.
3407         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3408         setting c_target_objs and cxx_target_objs.
3409         * t-sh: Add rule for sh-c.o.
3410
3411 2006-01-30  Richard Guenther  <rguenther@suse.de>
3412
3413         PR c++/23372
3414         * gimplify.c (gimplify_target_expr): Handle easy cases
3415         without creating a temporary.
3416
3417 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3418
3419         * vec.h (safe_grow): Remove duplicated line.
3420
3421 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3422
3423         PR 25874
3424         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3425         (expand_omp): ... here.
3426         (expand_omp_parallel): Only remove barriers for combined
3427         parallel+workshare constructs.
3428
3429 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3430
3431         Revert
3432
3433         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3434         * tree.c (build_qualified_type): Chain the new type to the original
3435         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3436         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3437         (build_pointer_type_for_mode): Only return unqualified types.
3438         (build_reference_type_for_mode): Likewise.
3439
3440 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3441
3442         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3443         * Makefile.in (CXX_COMPAT_WARN): Define.
3444         * configure: Regenerate.
3445
3446 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3447
3448         PR tree-opt/25911
3449         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3450         to an if check.
3451
3452 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3453
3454         * toplev.c: Fix thinko.
3455
3456 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3457             Marcin Dalecki  <martin@dalecki.de>
3458
3459         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3460         (push_srcloc): Use XNEW.
3461         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3462
3463 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3464
3465         * df-core.c (df_set_blocks): Deleted all variable.
3466
3467 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3468
3469         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3470         cgraph_output_pending_asms.
3471
3472 2006-01-28  Zack Weinberg  <zackw@panix.com>
3473
3474         * c.opt: Add -W(no-)overlength-strings.
3475         * doc/invoke.texi: Document it.
3476         * c-opts.c (c_common_handle_option): -pedantic implies
3477         -Woverlength-strings, if not explicitly disabled already.
3478         (c_common_post_options): -Woverlength-strings defaults to off, and
3479         is always off for C++.
3480         * c-common.c (fix_string_type): Issue warning about strings longer
3481         than is portable only if warn_overlength_strings.  Rearrange code
3482         a little for clarity.
3483         * configure.in: Check for -Wno-overlength-strings as well before
3484         enabling -pedantic in stage 1.
3485         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3486         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3487
3488         * genconditions.c (write_header, write_one_condition)
3489         (write_conditions, write_writer): Consolidate very long strings
3490         that were broken up to fit in C89 portable limit.  Don't use
3491         printf when fputs will do.
3492
3493 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3494
3495         * combine.c (simplify_comparison <AND>): Check
3496         TRULY_NOOP_TRUNCATION before start using a subreg.
3497
3498         * config/mips/mips.md (*branch_zero<mode>,
3499         *branch_zero<mode>_inverted, *branch_equality<mode>,
3500         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3501         Remove mode check from comparisons.
3502
3503 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3504
3505         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3506
3507 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3508
3509         * expmed.c (const_mult_add_overflow_p): Remove.
3510         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3511
3512         * recog.c (validate_replace_rtx_subexp): Remove.
3513         * recog.h: Remove the prototype for
3514         validate_replace_rtx_subexp.
3515
3516         * integrate.h: Remove the prototype for
3517         copy_decl_for_inlining.
3518         * rtl.h: Remove the prototype for mark_constant_function.
3519         * tree-vectorizer.h: Remove the prototype for
3520         vect_strip_conversion.
3521
3522         * modulo-sched.c (create_partial_schedule,
3523         free_partial_schedule, reset_partial_schedule): Make them
3524         static.
3525
3526         * hooks.c (hook_bool_rtx_int_false): Remove.
3527         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3528
3529 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3530
3531         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3532         and -mlong-double-128 are incompatible.
3533         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3534         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3535         (TARGET_LIBGCC2_CFLAGS): Define.
3536         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3537         (TARGET_LIBGCC2_CFLAGS): Same.
3538         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3539
3540 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3541
3542         PR c/19606.
3543         * c-typeck.c (build_binary_op): Perform implicit casts of
3544         operands before shortening them.
3545
3546         * cfgloopmanip.c (split_loop_bb): Remove.
3547         * cfgloop.h: Remove the prototype for split_loop_bb.
3548
3549         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3550         * cfgloop.h: Remove the prototype for
3551         flow_loop_outside_edge_p.
3552
3553         * emit-rtl.c (init_virtual_regs): Make it static.
3554         * function.h: Remove the prototype for init_virtual_regs.
3555
3556         * recog.c (peephole2_optimize): Make it static.
3557         * recog.h: Remove the prototype for peephole2_optimize.
3558
3559 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3560
3561         * df-scan.c (df_record_entry_block_defs): Check if
3562         INCOMING_RETURN_ADDR_RTX is defined.
3563
3564 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3565             Kenneth Zadeck <zadeck@naturalbridge.com>
3566
3567         PR rtl-optimization/24762
3568         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3569         * targhooks.c (hook_void_bitmap): New hook prototype.
3570         * targhoohs.h (hook_void_bitmap): Ditto.
3571         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3572         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3573         * target.h (live_on_entry): New function pointer.
3574         * df-scan.c (df_all_hard_regs): Removed.
3575         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3576         (df_scan_free_internal): Added df->entry_block_defs.
3577         (df_scan_alloc): Ditto.
3578         (df_scan_dump): Ditto.
3579         (df_uses_record): Plumbed flag field properly thru calls.
3580         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3581         This part fixes PR24762.
3582         (df_bb_refs_record): Added code to make the frame and arg
3583         pointers live in EH blocks.
3584         (df_refs_record): Added call to df_record_entry_block_defs.
3585         (df_record_entry_block_defs): New function.
3586         * df-core.c: Added comments to describe new artifical defs.
3587         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3588         (entry_block_defs): New field in struct df.
3589         (df_all_hard_regs): Deleted.
3590         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3591         * df-problems.c (df_ru_bb_local_compute_process_def):
3592         Added code to handle artifical defs in the entry to a function.
3593         (df_ru_bb_local_compute): Ditto.
3594         (df_rd_bb_local_compute_process_def):  Ditto.
3595         (df_rd_bb_local_compute): Ditto.
3596         (df_lr_bb_local_compute): Ditto.
3597         (df_ur_bb_local_compute): Ditto.
3598         (df_urec_bb_local_compute):  Ditto.
3599         (df_chain_create_bb):  Ditto.
3600         (df_ur_local_finalize): Removed entry.
3601         (df_urec_init): Ditto.
3602         (df_urec_local_finalize): Ditto.
3603         (df_ri_bb_compute): Added detection of last use of pseudos.
3604         * Makefile.in (df-scan.o): Updated dependencies.
3605         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
3606         * config/mips/mips.c (mips_set_live_on_entry): Added.
3607         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
3608         for target hook.
3609         * dce.c (marked_insn_p): Added code to handle artifical defs.
3610
3611 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3612
3613         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
3614         intrinsic.
3615         (_mm_cvtsi128_si64): Likewise.
3616         (_mm_cvtsd_si64): Likewise.
3617         (_mm_cvttsd_si64): Likewise.
3618         (_mm_cvtsi64_sd): Likewise.
3619         (_mm_cvtsi64_si128): Likewise.
3620         * config/i386/mmintrin.h (_m_from_int64): Likewise.
3621         (_mm_cvtsi64_m64): Likewise.
3622         (_m_to_int64): Likewise.
3623         (_mm_cvtm64_si64): Likewise.
3624         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
3625         (_mm_cvttss_si64): Likewise.
3626         (_mm_cvtsi64_ss): Likewise.
3627         (_mm_cvtss_f32): Likewise.
3628
3629 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3630
3631         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3632         for pragma redefine_extname.
3633
3634 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
3635
3636         PR target/25864
3637         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
3638         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
3639         -mno-minimal-toc to previous content.
3640         (bispecs): Remove goal.
3641         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
3642         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
3643         compatibility aliases on powerpc-*-*gnu*.
3644         * config/rs6000/libgcc-ppc-glibc.ver: New file.
3645         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
3646         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
3647         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
3648         (ldblspecs): New goal.
3649         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
3650         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
3651         _df_to_tf.
3652         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
3653         L_sf_to_tf or L_df_to_tf is defined.
3654
3655 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
3656             Alan Modra  <amodra@bigpond.net.au>
3657
3658         PR target/25864
3659         * config/rs6000/linux.h (POWERPC_LINUX): Define.
3660         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
3661         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
3662         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
3663         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
3664         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
3665         (rs6000_override_options): Initialize rs6000_ieeequad.
3666         Initialize TFmode format to ibm_extended_format if not
3667         TARGET_IEEEQUAD.
3668         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
3669         ieeelongdouble.
3670         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
3671         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
3672         (function_arg_advance): IBM long double passed in two FPRs, not
3673         split.
3674         (function_arg): IBM long double passed in FPRs.
3675         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
3676         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
3677         Only multireg GPR aligned.
3678         (rs6000_init_libfuncs): Enable IBM long double functions if not
3679         IEEEQUAD.
3680         (rs6000_generate_compare): Use IBM long double compare if not
3681         TARGET_IEEEQUAD.
3682         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
3683         (TARGET_IEEEQUAD): Define.
3684         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
3685         not TARGET_IEEEQUAD.
3686         * config/rs6000/rs6000.md: Enable TFmode patterns if
3687         !TARGET_IEEEQUAD.
3688         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
3689         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3690         and -mlong-double-128 are incompatible.
3691         * doc/invoke.texi (-mabi): Collect options together.  Add
3692         ibmlongdouble and ieeelongdouble.
3693
3694 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
3695
3696         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
3697         opaque type.
3698         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
3699         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
3700         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
3701         * rtl.h (rtunion_def): Remove rt_ptr.
3702         (X0PTR): Delete.
3703         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
3704         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
3705         * config/i386/winnt.c (i386_pe_mark_dllexport)
3706         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
3707
3708 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
3709
3710         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
3711
3712 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
3713
3714         PR other/24829
3715         PR target/24831
3716         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
3717         pthread_key_delete.  From John David Anglin.  gthrw-ify
3718         pthread_getunique_np only if it it's not a macro.  Delete
3719         UNUSED macro.
3720         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
3721         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
3722         __gthread_objc_condition_signal, __gthread_key_delete): Add
3723         "__attribute__ ((__unused__))" to unused arguments.
3724         (__gthread_recursive_mutex_init_function): Add missing return.
3725         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
3726         gthr-posix95.h: Use macro-based approach for name redirection
3727         on targets missing weakref.
3728
3729 2006-01-26  Zack Weinberg  <zackw@panix.com>
3730
3731         * genconditions.c (write_header): In generated code, #ifdef out
3732         all includes and fake declarations, except includes of bconfig.h
3733         and system.h, unless GCC_VERSION >= 3001.  Do not include
3734         gensupport.h in any case.
3735         (write_conditions): Generate a definition of struct c_test.  Add
3736         a comment to the generated #endif.
3737         (write_one_condition): Escape backslashes in string too.
3738         (write_writer): Generated code must escape backslashes and quote
3739         marks (but not newlines) in the strings it writes.
3740         * Makefile.in (build/gencondmd.o): Update dependencies.
3741
3742 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3743
3744         PR target/25961
3745         * Makefile.in (insn-automata.o): Add header file dependencies.
3746         * genautomata.c: Add includes.
3747
3748 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3749
3750         PR target/25961
3751         * Makefile.in (insn-automata.o): Add -Wno-error flag.
3752
3753 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3754
3755         * configure.ac: Expect target tools paths to be passed from the toplevel
3756         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
3757         AS_SET_VAR_IF.
3758         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
3759
3760 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
3761
3762         PR c/25892
3763         * c.opt (Wpointer-sign): Init to -1.
3764         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
3765         OPT_pedantic, to 0 otherwise.
3766         * doc/invoke.texi: Update.
3767
3768 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3769
3770         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
3771         constants provided by 80387 instructions in the destination mode.
3772
3773 2006-01-26  Richard Guenther  <rguenther@suse.de>
3774             Andrew Pinski  <pinskia@physics.uc.edu>
3775
3776         PR tree-opt/21470
3777         partial PR tree-opt/17064
3778         * tree-ssa-structalias.c (intra_create_variable_infos):
3779         Create heap variables for incoming parameters if
3780         flag_argument_noalias > 1.
3781         (find_what_p_points_to): Look through default defs of
3782         parameter decls.
3783
3784 2006-01-26  Jeff Law  <law@redhat.com>
3785
3786         PR ada/25900
3787         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
3788         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
3789         within the VR_RANGE, use the VR_RANGE as the result, not the
3790         VR_ANTI_RANGE.
3791         (adjust_range_with_scev): Reject ranges from SCEV which are out of
3792         bounds for the type.
3793
3794 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
3795
3796         * tree-ssa-alias.c (maybe_create_global_var): Change
3797         subvar walking to an assertion that we don't have subvar'd variables.
3798
3799 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
3800
3801         PR C/25861
3802         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
3803         Use a new variable, inner.  PARM_DECLs are always non-weak.
3804
3805 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
3806
3807         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
3808         --disable-checking.
3809
3810 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
3811
3812         * config/mips/mips.md (*clear_upper32): New combiner pattern.
3813
3814 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
3815
3816         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
3817         (smax_insn, smin_insn, smax_0, smin_0): New.
3818
3819 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
3820
3821         PR target/25947
3822         * config/cris/cris.c (cris_order_for_addsi3): New function.
3823         * config/cris/cris-protos.h: Prototype it.
3824         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
3825         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
3826         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
3827         (split for "op.S1 [rx=rx+i],ry (swapped)")
3828         (split for "op(s|u).S1 [rx=rx+i],ry")
3829         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
3830         Apply cris_order_for_addsi3 when generating addsi3 insns.
3831
3832 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3833
3834         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
3835         (TREE_BLOCK): Add call to EXPR_CHECK.
3836
3837 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3838
3839         PR 25886
3840         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
3841         * tree-pretty-print.c (dump_omp_clause): Extract from ...
3842         (dump_omp_clauses): ... here.
3843         (dump_generic_node): Handle OMP_CLAUSE.
3844         * tree.c (omp_clause_num_ops): New.
3845         (omp_clause_code_name): New.
3846         (tree_code_size): Handle OMP_CLAUSE.
3847         (tree_size): Likewise.
3848         (make_node): Document handling of OMP_CLAUSE.
3849         (tree_node_structure): Handle OMP_CLAUSE.
3850         (omp_clause_check_failed): New.
3851         (omp_clause_range_check_failed): New.
3852         (omp_clause_operand_check_failed): New.
3853         (build_omp_clause): New.
3854         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
3855         * tree.h (enum omp_clause_code): Declare.
3856         (OMP_CLAUSE_SUBCODE_CHECK): Define.
3857         (OMP_CLAUSE_RANGE_CHECK): Define.
3858         (OMP_CLAUSE_ELT_CHECK): Define.
3859         (omp_clause_check_failed): Declare.
3860         (omp_clause_operand_check_failed): Declare.
3861         (omp_clause_range_check_failed): Declare.
3862         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
3863         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
3864         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
3865         (OMP_CLAUSE_LASTPRIVATE): Likewise.
3866         (OMP_CLAUSE_IF_EXPR): Likewise.
3867         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
3868         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
3869         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
3870         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
3871         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
3872         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
3873         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
3874         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
3875         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
3876         (OMP_CLAUSE_CODE): Define.
3877         (OMP_CLAUSE_SET_CODE): Define.
3878         (OMP_CLAUSE_CODE): Define.
3879         (OMP_CLAUSE_OPERAND): Define.
3880         (struct tree_omp_clause): Declare.
3881         (union tree_node): Add field 'omp_clause'.
3882         * treestruct.def (TS_OMP_CLAUSE): Define.
3883         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
3884         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
3885         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
3886         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
3887         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
3888         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
3889         (OMP_CLAUSE): Define.
3890         * print-tree.c (print_node): Handle OMP_CLAUSE.
3891         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
3892         * c-typeck.c: Likewise.
3893         * gimplify.c: Likewise.
3894         * c-omp.c: Likewise.
3895         * tree-nested.c: Likewise.
3896         * tree-inline.c: Likewise.
3897         * c-parser.c: Likewise.
3898         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
3899         clauses.
3900
3901 2006-01-25  Roger Sayle  <roger@eyesopen.com>
3902
3903         PR rtl-optimization/25703
3904         * combine.c (try_combine): Handle zero_extract and strict_low_part
3905         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
3906
3907 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
3908
3909         * global.c: Fix comment typos.
3910
3911 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
3912
3913         PR target/25758
3914         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
3915         Use output_addr_const instead of assemble_name.
3916
3917 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
3918
3919         * Makefile.in (sched-vis.o): Update dependencies.
3920         * haifa-sched.c (sched_finish): Clear current_sched_info.
3921         * cfg.c (dump_bb_info): New, split from dump_flow_info.
3922         (dump_flow_info): Call it.
3923         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
3924         a slim RTL dump.
3925         * basic-block.h (dump_bb_info): Declare.
3926         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
3927         option, and apply options only for dump files whose TDF_RTL,
3928         TDF_TREE, or TDF_IPA bits match.
3929         * rtl.h: Declare new functions exported from sched-vis.c.
3930         * sched-vis.c: Enable also if scheduling is not used.
3931         (print_value): Print the mode of registers if not inside scheduling.
3932         (print_insn): Make it work outside the scheduler.  Beautify the output
3933         a bit.
3934         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
3935
3936 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3937
3938         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
3939         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
3940         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
3941         depending on the value of CONSTANT_POOL_ADDRESS_P.
3942         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
3943         SYMBOL_REF_DECL.
3944         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
3945         rather than SYMBOL_REF_DECL.
3946         (rtx_constant_pool): Remove const_rtx_sym_htab.
3947         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
3948         (init_varasm_status): Don't initialize const_rtx_sym_htab.
3949         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
3950         Remove handling of const_rtx_sym_htab.
3951         (find_pool_constant): Delete.
3952         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
3953         rather than find_pool_constant.
3954         (get_pool_constant_for_function): Delete.
3955         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
3956         find_pool_constant.
3957         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
3958         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
3959         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
3960         (SYMBOL_REF_CONSTANT): New macro.
3961         (get_pool_constant_for_function): Delete.
3962         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
3963         rather than SYMBOL_REF_DECL.
3964         (i386_pe_mark_dllimport): Likewise.
3965         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
3966         rather than SYMBOL_REF_DECL.
3967         * config/darwin.c (machopic_indirect_data_reference): Likewise.
3968         (machopic_indirect_call_target): Likewise.
3969
3970 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
3971
3972         * flow.c (delete_noop_moves): Add missing EOL to dump message.
3973
3974 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3975
3976         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
3977
3978 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3979
3980         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
3981
3982 2006-01-24  David Daney  <ddaney@avtrex.com>
3983
3984         PR java/25816
3985         * configure.ac (enable_tls): New enable option.
3986         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
3987